U2: Human Geography

Which of the following elements produces no harmful emissions when used as an energy source?

• coal

• oil

• wind

• natural gas

Arnold is concerned about his impact on the environment. Currently he drives a car that gets only 12 miles per gallon of gas. Which of the following actions would be the most effective to lessen his environmental impact?

• driving at a higher rate of speed

• switching to a car that gets 30 miles per gallon

• purchasing higher octane gas

• traveling by plane

What has been a consequence of human economic development in advancing nations?

• subsistence farming

• conservation

• photosynthesis

• pollution

Which renewable resource could become a nonrenewable resource if used faster than Earth's ability to replenish its supply?

• water

• manganese

• sunlight

• wind

Which of the following activities describes how a subsistence farmer uses land?

• leases it to several other farmers for extra income

• grows food and tends livestock to provide for a family

• sells drilling rights to part of the land to a natural gas company

• sets up a grocery store on the property to sell outside goods

Which of the following natural resources is considered renewable?

• natural gas

• wood

• coal

• iron

In what way does renewable energy differ from nonrenewable energy?

• It is cheaper to produce than nonrenewable energy.

• It is derived from natural resources that cannot be depleted.

• It is never used in automobiles.

• It creates no environmental hazards.

Which of the following consequences results from forests being stripped of plant life?

• deforestation

• acid rain

• sprawl

• increased population

Which of the following choices is an effective way to fight desertification?

• irrigation

• urbanization

• soil erosion

• tree plantings

Which of the following statements explains the position of those who oppose expanding nuclear power plants in the United States?

• The disposal of used nuclear fuel rods and the security of the plants themselves is of concern.

• Nuclear energy is an unclean energy source and would only increase air pollution.

• The amount of nuclear power plants in the United States has already surpassed industries producing fossil fuels.

• The United States would have to rely on a foreign supply of uranium, thus increasing national debt and dependence.