Chapter 4: Earth's Resources

What are renewable resources?

• Resources that cannot be replenished

• Resources that can be replenished over short time spans

• Resources that are always available

• Resources that are man-made

What are nonrenewable resources?

• Resources that can be replenished quickly

• Resources that take millions of years to form

• Resources that are always available

• Resources that are man-made

Which of the following is an example of a fossil fuel?

• Solar energy

• Wind energy

• Coal

• Biomass

With an increase in population, the demand for resources will ​ (a)   .

• increase
• decrease
• stay the same

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​ (a)   of the world's population lives in the United States and the U.S. uses ​ (b)   of the world's energy.

• 10%

• 15%

• 6%
• 20%
• 25%

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What are fossil fuels primarily made from?

• Metals

• Water

• Remains of living things

• Rocks

What percentage of electricity used in the U.S. is from fossil fuels?

• 50%

• 85%

• 30%

• 70%

What is the process by which coal forms over millions of years?

• Erosion and weathering

• Heat and pressure transforming plant materials

• Freezing and thawing

• Evaporation and condensation

What is the first stage in the formation of coal?

• Anthracite

• Bituminous

• Peat

• Lignite

What are petroleum and natural gas formed from?

• Remains of organisms buried in ancient seas

• Volcanic rocks

• Atmospheric gases

• Ocean water

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