Consumption Impacts Earth - Middle School Earth and Space Science
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Which Earth system is most directly changed when coal, oil, or gas is removed from underground?
Which Earth system is most directly changed when coal, oil, or gas is removed from underground?
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Geosphere. Fossil fuels are extracted from Earth's crust and rocks.
Geosphere. Fossil fuels are extracted from Earth's crust and rocks.
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What is the main atmospheric evidence that burning fossil fuels increases the greenhouse effect?
What is the main atmospheric evidence that burning fossil fuels increases the greenhouse effect?
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Rising atmospheric $CO_2$ concentration over time. Direct measurements show increased greenhouse gas levels.
Rising atmospheric $CO_2$ concentration over time. Direct measurements show increased greenhouse gas levels.
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Identify the most likely resource-consumption cause: groundwater levels drop near many wells.
Identify the most likely resource-consumption cause: groundwater levels drop near many wells.
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Overpumping groundwater faster than recharge. Extraction exceeding natural replenishment depletes aquifers.
Overpumping groundwater faster than recharge. Extraction exceeding natural replenishment depletes aquifers.
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Choose the best conclusion: Fertilizer use rises, then lake DO drops and algae increase.
Choose the best conclusion: Fertilizer use rises, then lake DO drops and algae increase.
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Fertilizer runoff caused eutrophication and oxygen depletion. Nutrient pollution triggers algae growth that depletes oxygen.
Fertilizer runoff caused eutrophication and oxygen depletion. Nutrient pollution triggers algae growth that depletes oxygen.
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Identify the best evidence that mining impacts the hydrosphere near a site.
Identify the best evidence that mining impacts the hydrosphere near a site.
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Increased water turbidity or heavy metal contamination downstream. Mining releases sediments and toxins into water systems.
Increased water turbidity or heavy metal contamination downstream. Mining releases sediments and toxins into water systems.
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Which Earth system is most directly impacted by increased particulate matter from burning coal?
Which Earth system is most directly impacted by increased particulate matter from burning coal?
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Atmosphere. Combustion releases particles directly into the air.
Atmosphere. Combustion releases particles directly into the air.
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Identify the cause of increased sediment in a river after nearby forest clearing.
Identify the cause of increased sediment in a river after nearby forest clearing.
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Increased erosion because roots no longer hold soil in place. Tree roots stabilize soil; their removal accelerates erosion.
Increased erosion because roots no longer hold soil in place. Tree roots stabilize soil; their removal accelerates erosion.
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Which observation is strongest evidence that plastic pollution harms the biosphere?
Which observation is strongest evidence that plastic pollution harms the biosphere?
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Animals ingesting or becoming entangled in plastic debris. Direct physical harm shows plastic's impact on living organisms.
Animals ingesting or becoming entangled in plastic debris. Direct physical harm shows plastic's impact on living organisms.
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Which claim is best supported if atmospheric $CO_2$ rises as fossil fuel use rises?
Which claim is best supported if atmospheric $CO_2$ rises as fossil fuel use rises?
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Fossil fuel combustion is increasing greenhouse gases in the atmosphere. Correlation shows burning releases stored carbon as $CO_2$.
Fossil fuel combustion is increasing greenhouse gases in the atmosphere. Correlation shows burning releases stored carbon as $CO_2$.
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Which Earth system is most directly affected when plastics accumulate in oceans?
Which Earth system is most directly affected when plastics accumulate in oceans?
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Hydrosphere. Plastic waste directly enters water bodies and accumulates.
Hydrosphere. Plastic waste directly enters water bodies and accumulates.
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What is acid rain, and what resource use is most associated with it?
What is acid rain, and what resource use is most associated with it?
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Precipitation made acidic by $SO_2$ and $NO_x$ from burning fossil fuels. Sulfur and nitrogen oxides from combustion lower rain pH.
Precipitation made acidic by $SO_2$ and $NO_x$ from burning fossil fuels. Sulfur and nitrogen oxides from combustion lower rain pH.
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What is the main biosphere impact of overfishing supported by population data?
What is the main biosphere impact of overfishing supported by population data?
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Declining fish populations and reduced biodiversity. Harvesting faster than reproduction depletes populations.
Declining fish populations and reduced biodiversity. Harvesting faster than reproduction depletes populations.
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What are the four main Earth systems commonly analyzed in middle school science?
What are the four main Earth systems commonly analyzed in middle school science?
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Geosphere, hydrosphere, atmosphere, biosphere. The four interconnected spheres that make up Earth.
Geosphere, hydrosphere, atmosphere, biosphere. The four interconnected spheres that make up Earth.
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What is meant by resource consumption in Earth system science?
What is meant by resource consumption in Earth system science?
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Use of natural resources (water, minerals, fuels, biomass) by humans. Extraction and use of Earth's materials for human needs.
Use of natural resources (water, minerals, fuels, biomass) by humans. Extraction and use of Earth's materials for human needs.
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What is the most direct evidence that irrigation can cause soil salinization?
What is the most direct evidence that irrigation can cause soil salinization?
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Salt buildup in topsoil after repeated watering and evaporation. Water evaporates but salts remain, accumulating in soil.
Salt buildup in topsoil after repeated watering and evaporation. Water evaporates but salts remain, accumulating in soil.
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What is a major hydrosphere impact of pumping groundwater faster than it recharges?
What is a major hydrosphere impact of pumping groundwater faster than it recharges?
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Lowered water table and potential land subsidence. Excessive withdrawal depletes aquifers and compacts sediments.
Lowered water table and potential land subsidence. Excessive withdrawal depletes aquifers and compacts sediments.
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Which water-quality measurement is strong evidence of eutrophication in a lake?
Which water-quality measurement is strong evidence of eutrophication in a lake?
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Low dissolved oxygen (DO). Decomposing algae consume oxygen, creating hypoxic conditions.
Low dissolved oxygen (DO). Decomposing algae consume oxygen, creating hypoxic conditions.
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What is eutrophication, as evidence of nutrient pollution from fertilizers?
What is eutrophication, as evidence of nutrient pollution from fertilizers?
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Algal bloom growth that lowers dissolved oxygen in water. Excess nutrients trigger algae growth that depletes oxygen.
Algal bloom growth that lowers dissolved oxygen in water. Excess nutrients trigger algae growth that depletes oxygen.
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What is the best evidence that deforestation can increase atmospheric $CO_2$?
What is the best evidence that deforestation can increase atmospheric $CO_2$?
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Reduced carbon uptake by plants and more carbon released from biomass. Trees absorb $CO_2$; cutting them stops this process.
Reduced carbon uptake by plants and more carbon released from biomass. Trees absorb $CO_2$; cutting them stops this process.
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What is the most direct Earth system impact of surface mining on land?
What is the most direct Earth system impact of surface mining on land?
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Habitat loss and increased erosion/sediment runoff. Mining removes vegetation and exposes soil to weathering.
Habitat loss and increased erosion/sediment runoff. Mining removes vegetation and exposes soil to weathering.
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What is the difference between renewable and nonrenewable resources?
What is the difference between renewable and nonrenewable resources?
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Renewable replenishes quickly; nonrenewable forms very slowly. Time scale distinguishes them: renewable in years/decades, nonrenewable in millions of years.
Renewable replenishes quickly; nonrenewable forms very slowly. Time scale distinguishes them: renewable in years/decades, nonrenewable in millions of years.
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What is the most direct geosphere impact of removing vegetation on steep slopes?
What is the most direct geosphere impact of removing vegetation on steep slopes?
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Increased landslide risk. Plant roots stabilize soil; without them, slopes become unstable.
Increased landslide risk. Plant roots stabilize soil; without them, slopes become unstable.
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What is the best definition of a natural resource in Earth system science?
What is the best definition of a natural resource in Earth system science?
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A material or energy source from Earth used by humans. Humans extract and use Earth's materials and energy for their needs.
A material or energy source from Earth used by humans. Humans extract and use Earth's materials and energy for their needs.
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What evidence would best show that deforestation increases soil erosion?
What evidence would best show that deforestation increases soil erosion?
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Higher sediment levels in nearby streams after tree removal. Trees hold soil; their removal allows more soil to wash into waterways.
Higher sediment levels in nearby streams after tree removal. Trees hold soil; their removal allows more soil to wash into waterways.
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What is the most direct biosphere effect of deforestation for timber or farming?
What is the most direct biosphere effect of deforestation for timber or farming?
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Habitat loss and reduced biodiversity. Removing forests destroys animal homes and reduces species variety.
Habitat loss and reduced biodiversity. Removing forests destroys animal homes and reduces species variety.
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