All questions
Question 1
The passage traces how the Industrial Revolution contributed to urbanization. First, new machines and factories increased production. That created many jobs in manufacturing. Most factories were built in or near cities, close to transportation and markets. So people who had farmed in rural areas began moving to urban centers for steady wages. As a result, city populations grew quickly. The author then explains a chain reaction. Crowded cities needed more housing, clean water systems, and public transit. City governments also faced new problems, such as pollution and unsafe working conditions. These problems led to calls for reform. By using phrases like "because" and "as a result," the text shows that urban growth did not happen randomly. It followed from factory jobs drawing people into cities.
How does the text show that the Industrial Revolution led to urbanization?
- It explains that factories increased production and profits, so business owners built more rural workshops and kept most workers on the farms where they already lived.
- It explains that factory jobs in cities drew rural workers, so city populations grew and needed new systems. (correct answer)
- It explains that people first crowded into cities for reform and better housing, and only afterward did inventors design the machines that filled the new factories.
- It explains that pollution and unsafe conditions pushed families out of cities and back toward farms, so machines mattered far less than people's dislike of urban life.
Explanation: The passage builds a cause-and-effect chain with signal words like "because" and "as a result": factories placed jobs in cities, rural workers moved there for steady wages, city populations grew, and those crowded cities then needed housing, clean water, and transit. The correct answer follows that exact order, so it is the best choice. The option about building rural workshops and keeping workers on farms reverses the passage's point that factories were near cities and pulled people toward them. The option that puts crowding and reform before the machines flips the order of cause and effect, since production and jobs came first. The option claiming pollution pushed families back to farms takes real details from the passage—pollution and unsafe conditions—but misuses them; the text says these problems led to reform, not to people leaving cities. Only one choice keeps the direction of cause and effect the passage actually describes.
Question 2
In the late 1800s, Thomas Edison and Nikola Tesla both worked with electricity. The text points out that each held many patents. Each also helped shape modern power systems. Both relied on careful observation and repeated testing to improve their inventions. However, the author draws a clear contrast in their goals. Edison focused on building devices that could be sold quickly. He wanted them used safely in homes and businesses. So he organized teams and started companies to produce his designs. Tesla, in contrast, spent more time imagining bold new possibilities. One example was long-distance wireless power, even when the technology and money were not yet ready. The passage suggests these different approaches shaped their reputations. Edison became known as a practical, business-minded inventor. Tesla became known as a visionary whose ideas sometimes arrived ahead of their time.
Which distinction does the author make between Edison and Tesla?
- The author says Edison worked mostly alone, while Tesla always worked in very large teams.
- The author contrasts Edison's focus on practical, market-ready inventions with Tesla's focus on bold theoretical ideas. (correct answer)
- The author argues that Tesla mainly copied Edison's inventions and then improved on them.
- The author claims that Edison avoided testing, while Tesla relied only on trial and error.
Explanation: The passage sets up shared traits, then contrasts goals: Edison aimed at practical, sellable devices, while Tesla chased bold ideas like wireless power. Choice B names that contrast, so it is correct. Choice A reverses who worked in teams, Choice C claims Tesla copied Edison, which the text never says, and Choice D says Edison avoided testing, though the passage states both relied on testing.
Question 3
In the late 1800s, Thomas Edison and Nikola Tesla both worked to shape how people used electricity. Both men built devices that helped power homes and businesses. Each earned praise for inventive talent. However, the text shows that their goals and working styles often pulled in different directions. Edison focused on making products that could be sold quickly. So he tested many small changes until something worked reliably for customers. Tesla, in contrast, was drawn to big, theory-driven leaps. He imagined systems that could send power more efficiently over long distances. Their disagreement became clear during the "War of Currents." Edison promoted direct current, or DC, which was easier to control over short distances. Tesla supported alternating current, or AC, which could travel farther with less power loss. As a result, cities faced competing electrical systems. The debate pushed engineers to improve safety, wiring, and power stations. Edison and Tesla are often shown as rivals. Still, their shared impact came from working in the same field while approaching invention from opposite angles.
What distinction does the author make between Edison and Tesla?
- The author shows that Edison and Tesla invented in completely unrelated fields, so their work never overlapped.
- The author explains that Edison relied on pure theory while Tesla ran repeated tests to build sellable products.
- The author contrasts Edison's practical, business-focused approach with Tesla's theoretical, long-distance vision. (correct answer)
- The author argues the main difference is that only Tesla truly influenced modern electrical systems.
Explanation: The passage draws its main contrast between the two men's styles: Edison aimed at quick, sellable products and tested small changes, while Tesla chased big, theory-driven ideas like sending power over long distances. Choice C names that distinction, so it is correct. Choice A says their fields never overlapped (they shared one field), Choice B swaps their approaches, and Choice D claims only Tesla mattered, though the passage credits both.
Question 4
When people talk about energy, they often mix together sources that behave very differently. One group is fossil fuels: coal, oil, and natural gas. These fuels are carbon-based, formed over millions of years, and called nonrenewable because they cannot be replaced quickly. Burning them releases carbon dioxide and other pollution, so their use is tied to air quality and climate concerns. In contrast, renewable sources include solar, wind, and water power. Nature refills these on a human timescale. Renewables also tend to make electricity with less air pollution, but they can be less steady. Solar output drops at night, and wind depends on the weather. As a result, the passage suggests that the key difference between the two groups is not just what they are made from. It is also how long they last and what trade-offs they create for the environment.
How does the text categorize the energy sources it discusses?
- It groups the sources by whether they are mainly used in crowded cities or in more remote rural areas, treating location as the deciding trait.
- It divides them into fossil fuels and renewables based on renewability and typical pollution. (correct answer)
- It sorts them into sources that generate electricity and sources that supply heat, treating that use as the main dividing line rather than renewability.
- It arranges them by how expensive and widely available each source is, focusing on cost and supply instead of how they are replaced.
Explanation: The passage clearly splits energy into two named groups, fossil fuels and renewables, and explains the difference using how quickly each can be replaced (renewability) and how much pollution it creates. The choice naming fossil fuels and renewables based on renewability and pollution matches exactly what the author does, so it is correct. The choice about crowded cities versus rural areas is wrong because the passage never uses location as a category. The choice about electricity versus heat is wrong because the passage actually says renewables make electricity too, so 'electricity versus heat' is not the dividing line. The choice about cost and availability is wrong because, while the passage mentions renewables can be less steady, it never groups sources by price or supply. Only renewability and pollution match the categories the author actually uses.
Question 5
Three community projects are described in a town newsletter. One group plants native trees along a creek to prevent erosion and to shade the water so fish survive hot summers. A second team runs monthly river cleanups, removing plastic that can harm turtles and birds. A third club builds nesting boxes and protects a field where pollinators live. The members explain that bees help local gardens grow food. The newsletter never gives a single label for these efforts. However, the text places the projects side by side and stresses living habitats, water quality, and wildlife health. This invites readers to see a shared purpose. Each project also involves people changing their behavior to support the local ecosystem: planting, cleaning, or protecting land.
What connection between the three projects is implied by the passage?
- They are all forms of environmental conservation aimed at protecting local ecosystems and wildlife. (correct answer)
- They are all efforts to teach residents outdoor skills like gardening, boating, and building useful things.
- They are all ways for neighbors to improve the town's appearance so it looks tidier for visitors.
- They are all fundraising drives collecting donations to pay for future repairs around the community.
Explanation: The passage never names the projects with one label, but it lines up tree-planting, river cleanups, and pollinator protection and keeps stressing habitats, water quality, and wildlife health. That points to a shared purpose: protecting the local environment, which is what conservation means. The choice about teaching outdoor skills sounds close, but the projects are described by their effect on nature, not as lessons for residents. The choice about improving the town's appearance for visitors misreads the focus—the passage stresses living things and clean water, not how tidy the town looks. The choice about fundraising drives adds money and donations the passage never mentions; the members explain purposes like helping fish, turtles, and gardens, not collecting funds. Only the conservation choice captures the connection the newsletter actually implies.
Question 6
The author compares two ways scientists study Earth's past climate: ice cores and tree rings. Both, the passage explains, act like natural records because they preserve clues over time. Both methods also require careful measurement and comparison with modern data. However, the author highlights an important difference in what each record captures best. Ice cores, drilled from glaciers, can trap tiny bubbles of ancient air. So they reveal past greenhouse gas levels, and they can stretch back hundreds of thousands of years. Tree rings, in contrast, usually cover a shorter time span. But they can show year-by-year changes in local conditions such as rainfall and temperature. By placing "both" and "however" side by side, the passage shows the tools are connected by purpose but separated by what each measures most precisely.
How does the author connect and distinguish ice cores and tree rings?
- The author says both are human-made instruments, but only ice cores can be used outdoors.
- The author links them as natural climate records, but contrasts long-term air samples with year-by-year local detail. (correct answer)
- The author argues tree rings are more useful, because they contain bubbles of ancient air.
- The author states that ice cores and tree rings measure the same information in the same way.
Explanation: The author connects the two with "both": each is a natural record that preserves climate clues and needs careful measurement. Then "however" separates them by strength: ice cores hold ancient air and reach far back in time, while tree rings capture year-by-year local changes. Choice B follows that structure, so it is correct. Choice A calls them human-made, Choice C hands tree rings the ice cores' air bubbles, and Choice D says they measure the same thing the same way, all contradicted by the passage.
Question 7
The author explains two types of memory: short-term (working) memory and long-term memory. Short-term memory is a small "workspace." It holds information briefly, like keeping a phone number in mind just long enough to dial it. Long-term memory stores information for much longer. Examples include knowing how to ride a bike or recalling a historical event from last semester. To show how the two connect, the author uses a cause-and-effect link. Short-term memory has limited space. So people must rehearse new information, or tie it to what they already know, if they want it to last. As a result, strategies like summarizing, practicing, and making associations help learning stick. The author makes these links clear with words like "because" and "as a result," and with everyday examples.
How does the author show the relationship between short-term memory and long-term memory?
- By using cause-and-effect language to show that short-term limits make rehearsal and connections needed for information to last. (correct answer)
- By using cause-and-effect language to argue that short-term memory is stronger and gradually takes the place of long-term memory over time.
- By using cause-and-effect language to claim that long-term memory forms first and then produces the short-term memory workspace people use.
- By using everyday examples to show that both memory types work in total isolation, with neither one affecting or feeding into the other.
Explanation: The passage links the two memories with cause and effect: because short-term memory has limited space, people must rehearse information or tie it to what they know so it can last in long-term memory. The correct answer names exactly that relationship. The choice saying short-term memory is stronger and replaces long-term memory misreads the passage—the two work together, and neither replaces the other. The choice claiming long-term memory forms first and then produces short-term memory reverses the actual order the author describes. The choice saying the two types work in total isolation contradicts the passage, which shows short-term memory feeding into long-term memory through rehearsal and connections. Only the first answer captures the cause-and-effect link the author actually builds.
Question 8
The author explains renewable and nonrenewable energy in two ways. The author groups examples and contrasts their long-term effects. Fossil fuels include coal, oil, and natural gas. They are grouped together for a few reasons. They are carbon-based, they formed over millions of years, and they are used much faster than they can be replaced. Because burning them releases greenhouse gases, their widespread use adds to climate change. Renewable sources, in contrast, include solar, wind, and hydroelectric power. These are replaced naturally on a human time scale. They also usually produce fewer emissions while making electricity. However, the passage adds a complication. Renewables can be variable, since sunlight and wind change. So energy storage and grid planning matter. The text makes the relationship clear with category labels, like "fossil fuels" and "renewable sources." It also uses contrast words, like "in contrast" and "however."
How does the text categorize and contrast fossil fuels and renewable energy sources?
- It groups fossil fuels and renewables into a single category, treating them as equally clean because both are drawn from the Earth.
- It labels fossil fuels as quickly replaced sources, while presenting renewables as the type that runs out and cannot keep up.
- It labels fossil fuels as nonrenewable and polluting, while presenting renewables as cleaner but sometimes variable. (correct answer)
- It groups renewables as steady and always available, while presenting fossil fuels as the only source that can vary over time.
Explanation: The passage sorts energy into two categories and contrasts them. Fossil fuels are described as carbon-based sources that run out and release greenhouse gases, while renewables refill naturally, emit less, but can be variable when sunlight and wind change. The correct choice captures both the categories and that contrast. One wrong choice lumps the two together and calls both equally clean, but the text keeps them separate and says only renewables usually pollute less. Another reverses the facts, claiming fossil fuels are quickly replaced and renewables run out, when the passage says the opposite. The last wrong choice swaps the variability trait, calling renewables steady and fossil fuels variable, when the text ties variability to sunlight and wind, not to fossil fuels.
Question 9
The passage explains the internet by comparing it to a highway system. Just as highways connect many towns so drivers can travel between them, the internet connects many computers so information can move between them. The author extends the analogy. Roads and on-ramps are like cables, Wi-Fi signals, and routers that guide traffic. Vehicles are like data packets that carry messages. Traffic rules are like internet protocols, which keep information from crashing into other information. When a highway has a traffic jam, travel slows down. In the same way, when a network is crowded, videos buffer and downloads take longer. However, the author also notes a limit to the comparison. Unlike cars, data packets can be copied and sent along different routes at the same time. That helps the internet stay reliable even if one path is blocked.
How does the highway analogy help explain the internet?
- It suggests the internet works best when messages line up in a single lane, the way cars follow one road toward a shared destination.
- It highlights how the internet moves information more slowly than highways, since data must wait its turn the way cars stop at signals.
- It makes the movement of data easier to picture by matching routers, packets, and protocols to roads, cars, and traffic rules. (correct answer)
- It emphasizes how the internet depends on rules built by the same planners who design and maintain highway systems.
Explanation: The analogy takes something invisible—the movement of data—and links each part to something familiar you can picture: cables and routers act like roads and on-ramps, packets like vehicles, and protocols like the traffic rules that keep everything from crashing. The choice about matching routers, packets, and protocols to roads, cars, and traffic rules names exactly this purpose, so it is the best answer. The choice about messages lining up in a single lane misses the passage's point that packets can be copied and sent along several routes at once. The choice claiming the internet is slower than highways twists the traffic-jam comparison into a ranking the author never makes—the author compares crowding, not overall speed. The choice about highway planners building internet rules adds an idea the passage never states; the analogy compares how the systems work, not who runs them.
Question 10
There are two ways of understanding how disease spreads: germ theory and miasma theory. They are sometimes confused, because both tried to explain why people got sick. Both theories also encouraged some public health actions, such as cleaning streets and improving sanitation. However, the passage separates them by what each says causes illness. Miasma theory, common in the early 1800s, suggested that "bad air" from rotting material made people ill. So leaders focused on getting rid of foul smells. Germ theory, in contrast, argued that tiny organisms could enter the body and multiply. That meant preventing contact, through handwashing, sterilizing tools, and clean water, could stop infections. Then germ theory gained evidence from microscopes and experiments. Hospitals changed their routines, and survival rates improved. The text uses these differences to show how a new explanation can lead to new solutions.
What distinction does the author make between miasma theory and germ theory?
- Miasma theory links illness to tiny microorganisms, while germ theory links it to bad air rising from rotting material.
- Miasma theory says foul smells spread infection directly, while germ theory says the same smells become dangerous only indoors.
- Miasma theory links illness to bad air, while germ theory links it to microorganisms spread by contact. (correct answer)
- Miasma theory blames rotting material for illness, while germ theory blames the exact same rotting material.
Explanation: The passage separates the theories by the cause each names. Miasma theory blames "bad air" from rotting material, while germ theory blames tiny organisms that spread through contact. The correct choice states exactly that difference. The option that ties illness to microorganisms first and bad air second simply reverses the two theories. The choice about smells being dangerous "only indoors" invents a location detail the passage never mentions and misstates germ theory, which points to organisms, not smells. The option that says both theories blame the same rotting material erases the distinction the passage is built around, since germ theory actually points to living organisms entering the body. Only one choice keeps each theory matched to the cause the author actually gives it.
Question 11
Two characters, Maya and Jordan, face the same problem: they must give a class presentation with only two days to prepare. The author connects them by showing that both care about doing well and both feel nervous at first. Each one makes a plan, but the passage stresses how different those plans are. Maya starts by outlining her main points, and then she practices out loud, timing herself and fixing unclear parts. Jordan, in contrast, spends most of the first day searching for extra facts and designing slides. He tells himself he will practice "later." When the presentation arrives, Maya speaks smoothly because she has rehearsed, while Jordan stumbles because he is seeing some of his own slides for the first time. The author uses the words "similarly" and "in contrast," and then shows the results, to highlight a difference in how they prepared.
What distinction does the author make between Maya's and Jordan's preparation?
- Maya organizes and practices speaking, while Jordan gathers materials and delays rehearsing, so they get different results. (correct answer)
- Both feel nervous at first, so the author shows that their equal anxiety is what shapes how each of them performs.
- Maya researches heavily while Jordan focuses on outlining, so the author frames Jordan as the more prepared speaker.
- Both spend equal time on slides, so the author suggests that better visual design is what finally sets Maya apart.
Explanation: The passage contrasts how each character prepares. Maya outlines her points and rehearses aloud, so she speaks smoothly; Jordan gathers extra facts and builds slides but keeps putting off practice, so he stumbles. The choice naming that difference in method and its results is correct. The option about shared nervousness names a real connection, but the passage uses that similarity only as a starting point, not as the cause of their results. The option that has Maya researching and Jordan outlining reverses what each actually does and wrongly calls Jordan more prepared. The option about equal time on slides ignores that Jordan, not Maya, focused on slides, and it credits visual design rather than rehearsal for Maya's success. Only the first choice matches the distinction the author actually draws.
Question 12
A student compares two forms of government. One is direct democracy, and the other is representative democracy. In both systems, citizens help make laws. So the passage treats them as members of the same category: democracies. Both also depend on participation, such as voting. Voting helps reflect what people want. However, the author stresses an important difference in how decisions are made. In a direct democracy, citizens vote on the laws themselves. This can work in small communities. But it becomes hard when millions of people must decide complex issues. In a representative democracy, citizens instead elect officials. Those officials study issues and vote on laws for them. As a result, representative systems can handle large populations more easily. But they also require trust that representatives will listen. The text frames the comparison as a trade-off. It weighs speed, scale, and how directly citizens shape each decision.
How does the author show the relationship between direct democracy and representative democracy?
- By tracing a cause-and-effect chain, claiming that small direct democracies naturally grow into representative democracies as their populations expand.
- By comparing them as two democracies with shared voting, but contrasting who decides the laws. (correct answer)
- By ranking the two systems, arguing that direct democracy is always the fairer choice because citizens skip the middlemen entirely.
- By defining each system separately, treating them as opposites that share no common features or purpose at all.
Explanation: The passage first groups both systems together as democracies that rely on voting, then points to one key difference: in a direct democracy citizens vote on laws themselves, while in a representative democracy elected officials vote for them. The choice naming that compare-and-contrast relationship—shared voting, but a different decider—matches the text exactly. The cause-and-effect chain is wrong because the author never says one system grows into the other; it presents them as a trade-off, not a sequence. The ranking choice fails because the author weighs advantages on both sides and never declares direct democracy always fairer. The 'opposites with nothing in common' choice ignores that the passage explicitly says both are democracies where citizens help make laws and both depend on voting, so they clearly share features.
Question 13
The passage compares two ways societies spread information: oral tradition and the printing press. In many cultures, oral tradition worked like a living library. Much as a teacher repeats key ideas, storytellers memorized histories, laws, and myths. They passed these on through performance. This method could adapt to the audience. But it also depended on memory and could change over time. The printing press, in contrast, made it possible to produce many identical copies of a text. As a result, information could travel farther with fewer changes. More people could read the same ideas. This helped fuel movements like the Reformation and later scientific debates. The author uses comparison words like "similarly," "in contrast," and "as a result." These show that both systems share the goal of spreading knowledge but differ in speed, consistency, and reach.
How does the author show the relationship between oral tradition and the printing press?
- By comparing them as tools for sharing knowledge while contrasting oral tradition's flexibility with printing's consistency. (correct answer)
- By presenting them as competing methods and arguing that printing fully replaced oral tradition once texts became common.
- By treating them as identical approaches that spread the same ideas at the same speed and with equal accuracy.
- By focusing only on printing's wider reach while suggesting oral tradition offered no real advantages worth mentioning.
Explanation: The author uses signal words like "similarly," "in contrast," and "as a result" to build a compare-and-contrast relationship: both systems share the goal of spreading knowledge, but oral tradition is flexible and can change, while printing produces consistent copies with wider reach. The choice naming that compare-and-contrast pairing is correct. The choice saying printing "fully replaced" oral tradition goes too far—the passage compares the two systems but never says one erased the other. The choice calling them "identical" with the "same speed" and "equal accuracy" misreads the passage, which stresses that they differ in speed, consistency, and reach. The choice claiming oral tradition offered "no real advantages" ignores the passage's point that oral tradition could adapt to its audience, a genuine strength. Only one option captures both the shared goal and the specific contrast the author draws.
Question 14
Several key events of the U.S. civil rights movement built on one another. First, Brown v. Board of Education (1954) ruled that segregated public schools were unconstitutional. This challenged the idea that "separate" could ever be truly "equal." Next, the Montgomery Bus Boycott (1955 to 1956) used organized, nonviolent protest. It pressured local systems that enforced segregation. The boycott also proved the power of community coordination. It lasted many months, not just a single day. After that, national attention and continued activism built momentum for federal laws. As a result, the Civil Rights Act of 1964 banned segregation in many public places. It also outlawed job discrimination. The passage does not claim one event solved everything. Instead, it traces a progression. Legal rulings, local action, and federal laws each pushed the movement forward in connected ways.
How does the passage connect Brown v. Board of Education to the Civil Rights Act of 1964?
- It traces a sequence: Brown challenged segregation in law, protests showed nonviolent pressure, and both led to federal law. (correct answer)
- It treats the ruling and the law as separate victories, since the court case reformed schools while the statute mainly addressed workplaces.
- It presents the federal law as the earliest step that shaped the later court ruling, reversing the movement's actual order.
- It lines the two events up as parallel proof that they shared the same goals, the same methods, and the same outcomes.
Explanation: The passage lays out a progression across connected events. Brown struck down school segregation in the courts, the Montgomery boycott then showed the force of organized nonviolent protest, and that momentum helped produce the Civil Rights Act of 1964. The choice describing this connected sequence—law, protest, then federal action—matches the passage exactly, so it is the best answer. The option calling the two events separate victories misses the whole point: the passage stresses they "built on one another," not that they stood apart. The option that puts the federal law first and says it shaped the ruling reverses the passage's clear timeline (Brown 1954, then the Act 1964). The option claiming the events shared identical goals, methods, and outcomes ignores the passage's contrast: it presents a court ruling, a community boycott, and a federal law as different kinds of steps, each pushing forward in its own way—not as identical events.
Question 15
The passage connects the Industrial Revolution to rapid urbanization through a chain of cause and effect. First, new machines and factories increased production, so factory owners needed many workers in one place. Because of this demand, many rural families moved to the cities. They had once depended on farming, and now they wanted steady wages. As a result, cities grew faster than their housing, sanitation, and transportation could handle. The author adds that crowded neighborhoods and polluted water were not random problems. They were tied to the speed of growth and the lack of planning. Finally, these challenges pushed city governments to act. They built sewers, expanded public transit, and created health rules.
How does the text show that the Industrial Revolution led to urban problems?
- It argues that crowded, unhealthy cities existed first and that these conditions were what caused factories and machines to be built.
- It traces a cause-and-effect chain: factories drew workers to cities, and fast growth strained housing and sanitation. (correct answer)
- It lists several city problems as unrelated events, treating crowding and polluted water as random troubles with no shared cause.
- It compares life in the cities to life on the farms, arguing that the two settings offered families the same wages and conditions.
Explanation: The passage walks through a chain of causes and effects: factories needed workers, so rural families moved to cities, and the cities grew faster than their housing and sanitation could handle. The answer that names this cause-and-effect chain matches exactly what the text does, so it is correct. The choice that says cities came first and caused the factories reverses the order the passage lays out. The choice that calls the problems random, unrelated events contradicts the passage, which says crowding and polluted water were 'not random problems' but tied to fast growth and poor planning. The choice about comparing cities and farms misreads the text: farming is only background for why families left, not a claim that city and farm life offered the same wages and conditions.
Question 16
The author compares two ways communities respond to water shortages: building dams and promoting conservation. Both approaches, the text notes, share a goal. Each tries to make sure people have enough water for drinking, farming, and industry. Each one can also require planning and cooperation across many groups. However, the author points to a key contrast. Dams increase supply by storing water. But they can flood habitats and change river ecosystems. Conservation, in contrast, reduces demand. It relies on actions like fixing leaks, using drought-tolerant plants, and installing efficient appliances. The author uses signal words such as "both," "similarly," and "however." These show a shared purpose first, then separate the strategies by their methods and side effects.
How does the author show the relationship between building dams and promoting conservation?
- By using comparison words for their shared goal, then contrast words to show one adds supply and one cuts demand. (correct answer)
- By using comparison words for their shared goal, then treating supply and demand as the same measure with matching effects.
- By using comparison words for their shared goal, then arguing that reducing demand always works better than storing more water.
- By using comparison words for their shared goal, then focusing on habitat harm as the single reason communities pick either one.
Explanation: The passage first uses words like "both" and "similarly" to show the two strategies share a purpose, then uses "however" and "in contrast" to split them by method: dams add supply, while conservation cuts demand. The best answer names both moves and describes that real difference. One wrong choice claims supply and demand are the same measure with matching effects, but the text stresses they are opposite responses with different side effects. Another wrong choice says the author argues reducing demand always works better; the passage only contrasts the two approaches and never ranks one as superior. The last wrong choice says habitat harm is the single reason communities choose either strategy, but the author presents habitat harm as one side effect of dams, not the deciding factor between them. Only the correct answer captures the compare-then-contrast structure without adding a claim the passage does not make.
Question 17
Two approaches to protecting the environment are conservation and preservation. The passage compares them and also draws a clear line between their goals. Like budgeting money, conservation focuses on using resources wisely so they last. A forest might be logged, but only at a rate that lets the trees regrow. Fishing limits might be set so fish populations can recover. Preservation, in contrast, argues that some places should be left untouched. Their value is not just what humans can take from them. A preserved wilderness area might ban logging and mining entirely to protect habitats and natural processes. The passage suggests both approaches can reduce damage, but they answer different questions. Conservation asks, "How can we use this responsibly?" Preservation asks, "Should we use this at all?"
What connection and distinction does the author make between conservation and preservation?
- The author connects them as environmental strategies but treats them as identical, saying both simply mean using resources at a slow, careful rate to avoid damage.
- The author connects them as environmental strategies but distinguishes conservation as managed use and preservation as keeping areas untouched. (correct answer)
- The author connects them as environmental strategies but distinguishes preservation as careful, limited use and conservation as leaving places completely untouched.
- The author connects them as environmental strategies but distinguishes conservation as protecting habitats while preservation focuses on how humans can profit from the land.
Explanation: The passage links conservation and preservation as two ways to protect the environment, then separates them by the question each asks. Conservation asks how we can use resources responsibly so they last, while preservation asks whether some places should be used at all and left untouched. The correct choice names both the connection and that exact distinction. The choice claiming they are identical ignores the clear line the author draws between managed use and leaving areas alone. The choice that flips the terms wrongly assigns careful, limited use to preservation and "completely untouched" to conservation, reversing what the passage says. The choice saying preservation focuses on human profit contradicts the passage, which states a preserved area's value is not just what humans can take from it.
Question 18
To help readers understand the cell membrane, the author compares a cell to a school building with security. A school's doors and hall monitors control who enters or leaves. In the same way, the cell membrane controls which substances move into or out of the cell. The passage adds that some students can enter freely, like small molecules that pass easily. Others need permission or a special pass, like larger molecules that require transport proteins. However, the author points out that the membrane is not a solid wall. It is selectively permeable, which means it lets certain materials through while blocking others. The author matches each part of the analogy to a cell function. This makes an invisible process easier to picture.
How does the school-security analogy clarify the function of the cell membrane?
- It shows that the membrane sorts substances by size, so every molecule that reaches it is allowed inside just as students freely enter school.
- It explains selective permeability by comparing a school's controlled entry to how the membrane regulates what passes. (correct answer)
- It suggests the membrane blocks every substance completely, the way a fully locked school would keep out all students and visitors.
- It suggests the membrane does not control movement at all and simply lets every substance pass through freely, like open school doors.
Explanation: The passage says the membrane is selectively permeable: it lets some things through while stopping others, just as a school's doors and monitors let some people in but not others. The choice about controlled entry regulating what passes captures this exactly, so it is the best answer. The choice claiming every molecule that reaches the membrane gets inside misreads the analogy—larger molecules still need transport proteins, so entry is not automatic. The choice saying the membrane blocks every substance ignores that small molecules pass easily, so it is not a solid wall. The choice saying the membrane controls nothing and lets everything through misses the whole point of the analogy, since the membrane is selective, not open. Only the controlled-entry choice matches what the passage actually explains.
Question 19
The Industrial Revolution changed where many people lived and worked. Before factories spread, families often earned a living through farming or small local trades. Because of this, communities were spread out. Factories needed large groups of workers in one place. They created steady jobs that drew people from rural areas. As a result, towns near factories grew into crowded cities. This fast growth also created new needs. Cities had to build sewers, provide clean water, and improve transportation so workers could reach their jobs. However, city growth did not mean a better life for everyone. Some workers earned more reliable wages. Others faced unsafe conditions and cramped housing. Even so, the text connects industrialization to urban growth with a clear chain: factory jobs pulled people in, and city systems expanded to handle the new population.
How does the text show that the Industrial Revolution led to urbanization?
- It suggests that crowded cities formed first and then sent workers outward to build scattered factories across the countryside.
- It explains that factories created central jobs that pulled rural workers into growing towns, which needed new city systems. (correct answer)
- It states that farming and factory work stayed side by side, so people never had to move or change where they lived.
- It argues that cities expanded mainly to build sewers and roads, and that steady factory jobs played only a minor role.
Explanation: The passage traces a clear cause-and-effect chain: factories concentrated jobs in one place, those jobs drew rural workers into towns, the towns grew into crowded cities, and the cities then had to build sewers, water systems, and transportation. The correct choice follows that chain exactly, from factory jobs to city growth to new systems. The choice that says crowded cities formed first reverses the order the text gives. The choice that says farming and factory work stayed side by side contradicts the text, which shows people leaving rural areas for factory towns. The choice that says cities grew mainly to build sewers and roads flips cause and effect: the text presents those systems as a response to population growth, not the reason people arrived. Only one option keeps the causal order the passage lays out.
Question 20
Read the passage and answer the question.
Scientists often group rocks into three categories based on how they form. Igneous rocks, for example, come from melted rock that cools and hardens; basalt forms when lava cools quickly at Earth’s surface, while granite forms when magma cools slowly underground. Sedimentary rocks, in contrast, are made from layers of sand, shells, or bits of older rocks that get pressed together over time; sandstone and limestone fit here because they show evidence of deposits building up. Metamorphic rocks form when heat and pressure change an existing rock without melting it. As a result, marble can form from limestone, and slate can form from shale. The passage connects these categories by showing that each type depends on a different process—cooling, layering, or transforming.
How does the text categorize igneous, sedimentary, and metamorphic rocks?
- By grouping them according to their visible appearance: color, grain size, and how shiny or dull each rock looks to an observer.
- By grouping them according to where they are found: rocks discovered in oceans, rocks discovered in deserts, and rocks discovered in mountains.
- By grouping them according to how they form: cooling from melt, layering of sediments, or change by heat and pressure. (correct answer)
- By grouping them according to their age: the oldest rocks, rocks of middle age, and the youngest rocks formed most recently.
Explanation: The passage states directly that scientists group rocks "based on how they form." Each category is defined by a process: igneous rocks cool from melted rock, sedimentary rocks build up from layers pressed together over time, and metamorphic rocks change through heat and pressure. So the group that names cooling from melt, layering of sediments, or change by heat and pressure matches the text's organizing principle exactly.
The choice about visible appearance is wrong because color, grain size, and shininess are never used in the passage to sort rocks; formation is the criterion, not looks. The choice about where rocks are found is wrong because the passage never mentions oceans, deserts, or mountains as sorting categories—location is invented. The choice about age is wrong because, although rocks do have different ages, the text organizes them by process, not by which formed earliest or most recently. To answer, you have to identify the actual shared characteristic the writer uses to define each group, and only formation process fits every sentence in the passage.