Environmental Studies - Unit 1 Test REVIEW

Renewable energy is energy from sources that ...

• are constantly being formed.
• will take years to deplete.
• humans can manufacture.
• were once living organisms.

Which of the following is an example of a nonrenewable energy source?

• solar
• hydroelectric
• geothermal
• nuclear power

Oil and natural gas are fossil fuels, which result from ...

• the migration of complex carbohydrate molecules to nonporous rock formations.
• the decay of tiny marine organisms that accumulated on the ocean floor millions of years ago.
• the burning of high-sulfur, low-grade uranium.
• the decay of plants that lived in swamps hundreds of years ago.

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Nuclear fusion ...

• produces more radioactive waste than nuclear fission.
• creates “daughter” nuclei.
• involves splitting of atomic nuclei.
• involves the combining of atomic nuclei.

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What are the 5 major factors influencing the value of a particular fuel?

• energy content, cost, availability, safety, and by-products
• source, atomic weight, transportation costs, energy type, and combustibility
• location, availability, marketing, popularity, and by-products
• energy content, cost, atomic weight, popularity, and safety

Which of the following accurately describes the use of fossil fuels for energy?

• The burning of fossil fuels releases no greenhouse gases.
• Burning fossil fuels releases large amounts of carbon dioxide into the atmosphere.
• Fossil fuels account for all of the electricity generated in the United States.
• Fossil fuels are used for powering wind turbines.

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A nuclear reactor is ...

• powered by the sun.
• where nuclear fission is used to heat water to generate electricity.
• where coal is used to heat water to generate electricity.
• the most used form of generating electricity in the U.S.

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Which of the following is an advantage of using fossil fuels for energy?

• the resulting air pollution
• versatility in their uses
• limited quantities
• toxic by-products

Storage sites for nuclear wastes ...

• can only be located only in mountain ranges.
• will always leak lethal amounts of radioactivity.
• should be located only in areas that are extremely geologically stable.
• should be able to undergo the process of transmutation.

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How is electrical energy generated in a coal-fired power plant?

• The heat generated from burning coal turns water into steam, which turns a turbine, thus running the electric generator.
• The coal is burned, which heats the air. The hot air rises and turns the electric generator’s turbine.
• The turbine breaks down the coal into a liquid fuel that powers the electric generator, thus producing an electric current.
• The coal is heated until it vaporizes. The coal vapor is distilled in the combustion chamber, which powers the electric generator.

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