Energy Test Review

What defines a renewable energy source?

• It exists in a fixed amount

• It can be replenished naturally at or near the rate of consumption

• It includes fossil fuels

• It uses advanced technologies only

Which of the following is a disadvantage of solar energy?

• It can only be used effectively in certain regions and times

• It is nonrenewable

• It produces greenhouse gases

• It is inexpensive

Identify a renewable energy source:

• Coal

• Natural gas

• Solar

• Uranium

What is the primary difference between biomass and biofuels?

• Biomass is liquid; biofuels are solid

• Biomass is burned directly; biofuels are processed

• Biomass comes from plants; biofuels from animals

• Biomass is renewable; biofuels are non-renewable

Which fossil fuel is considered the cleanest when burned?

• Coal

• Oil

• Natural gas

• Peat

What is the largest source of renewable electricity globally?

• Solar

• Wind

• Hydroelectric

• Geothermal

What is a major ecological drawback of large hydroelectric dams?

• Air pollution

• Habitat flooding and fragmentation

• Noise pollution

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What is the primary source of heat for geothermal energy?

• The sun

• Radioactive decay in Earth's core

• Chemical reactions in the mantle

• Friction between tectonic plates

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Which of the following is NOT a benefit of wind energy?

• No air pollutants released

• Can share land with agriculture

• Provides consistent power supply

• Non-depletable resource

What is a major renewable energy resource in developing countries?

• Wind

• Solar

• Hydro

• Biomass