All flashcards
Flashcard 1: Which renewable resource is harnessed using wind turbines?
Answer: Wind energy. Moving air spins turbine blades to generate electricity.
Flashcard 2: What is the main benefit of using tidal energy?
Answer: Predictable energy generation based on tidal cycles. Ocean tides follow regular, reliable patterns.
Flashcard 3: Which resource is used in the production of biofuels?
Answer: Biomass. Organic matter converted into ethanol and biodiesel.
Flashcard 4: State the primary use of coal.
Answer: Electricity generation. Burned in power plants to produce electrical energy.
Flashcard 5: What is the main environmental concern associated with nuclear power?
Answer: Nuclear waste disposal and potential for accidents. Radioactive waste and meltdown risks pose threats.
Flashcard 6: Identify one example of a renewable resource.
Answer: Solar energy. Continuously available from the sun's radiation.
Flashcard 7: What is a major advantage of hydropower over solar power?
Answer: Consistent energy production regardless of weather. Water reservoirs store energy for continuous electricity generation.
Flashcard 8: What type of resource is uranium classified as?
Answer: Nonrenewable resource. Uranium is finite and takes millions of years to form.
Flashcard 9: What is geothermal energy?
Answer: Energy derived from the Earth's internal heat. Heat from Earth's core provides thermal energy.
Flashcard 10: Which energy source uses turbines and generators to convert kinetic to electrical energy?
Answer: Hydropower. Water flow turns turbines to generate electricity.
Flashcard 11: What is the definition of a nonrenewable resource?
Answer: A resource with a finite supply that cannot be replenished quickly. These take millions of years to form naturally.
Flashcard 12: State the main disadvantage of hydropower.
Answer: Potential ecological disruption in aquatic ecosystems. Dams can disrupt fish migration and river ecosystems.
Flashcard 13: Which renewable energy is least affected by weather conditions?
Answer: Geothermal energy. Earth's internal heat remains constant regardless of weather.
Flashcard 14: What is the primary challenge of tidal energy?
Answer: Limited to coastal areas with significant tidal ranges. Only viable in specific geographic locations globally.
Flashcard 15: What is the main issue with nuclear waste?
Answer: Requires long-term storage solutions due to radioactivity. Radioactive materials remain hazardous for thousands of years.
Flashcard 16: Identify one example of a nonrenewable resource.
Answer: Coal. Formed from ancient organic matter over millions of years.
Flashcard 17: How does geothermal energy impact land use?
Answer: Minimal land footprint compared to other energy sources. Underground systems require small surface areas.
Flashcard 18: State one environmental benefit of using renewable resources.
Answer: Reduces carbon footprint and air pollution. Renewable energy produces minimal harmful emissions.
Flashcard 19: What is the primary component of coal?
Answer: Carbon. Coal is mostly carbon formed from compressed plants.
Flashcard 20: What is the primary factor affecting the efficiency of wind turbines?
Answer: Wind speed and consistency. Turbines need consistent wind to operate efficiently.
Flashcard 21: What is the definition of a renewable resource?
Answer: A resource replenished naturally at a rate comparable to its usage. Renewable resources regenerate within human timescales.
Flashcard 22: Which renewable resource relies on photovoltaic cells?
Answer: Solar energy. Photovoltaic technology converts sunlight into electricity.
Flashcard 23: Identify one health impact of air pollution from fossil fuels.
Answer: Respiratory problems such as asthma. Air pollutants irritate and damage respiratory systems.
Flashcard 24: Identify one environmental impact of extracting natural gas.
Answer: Potential groundwater contamination from fracking. Hydraulic fracturing can pollute underground water supplies.
Flashcard 25: Identify the primary gas contributing to the greenhouse effect from fossil fuels.
Answer: Carbon dioxide (CO₂). Released when fossil fuels are burned for energy.
Flashcard 26: What is a significant limitation of solar energy?
Answer: Energy production is limited by sunlight availability. Clouds and nighttime prevent continuous energy generation.
Flashcard 27: What is the main advantage of using renewable energy over nonrenewable?
Answer: Sustainability due to an unlimited supply. Renewable resources won't be depleted over time.
Flashcard 28: Identify one example of a renewable resource.
Answer: Solar energy. Continuously available from the sun's radiation.
Flashcard 29: What is geothermal energy?
Answer: Energy derived from the Earth's internal heat. Heat from Earth's core provides thermal energy.
Flashcard 30: Which energy source can cause habitat destruction and water use conflicts?
Answer: Hydropower. Dams flood ecosystems and compete for water resources.