Unit 4 - Human Impacts

Which of the following could limit the supply of a renewable resource?

• Recycling aluminum cans

• Cutting down trees in forests

• Mining minerals such as gold

Which of these is MOST likely a result of using pesticides on farm crops?

• Rainfall levels could decrease

• Air temperatures could increase

• Water sources could become polluted

Of the examples below, select the examples that show a reduction in the use of natural resources.

• Solar panels

• Rush-hour traffic

• Hydroelectric dam

Which of these actions can best replenish natural materials?

• Refining trees into paper

• The slow breakdown of once-living organism.

• Planting trees every year after an area is logged.

Which statements CORRECTLY describe human population growth? Select all that apply.

• Only less-developed countries experience population growth.

• The U.S. is experiencing population growth.

• The population of the US is declining.

• Population is growing in most countries but is declining in some.

• Only very developed countries experience population growth

Which statement best summarizes the effect of technology on human population?

• Technology is the sole cause of the growth in the human population.

• Technology can be used to reduce the impact of population growth on the planet.

• Technology is the sole cause of the reduction in the rate of human population growth.

Choose the best answer. Water pollution damages drinking water supplies and poses health risks. All of the following are human health risks associated with water pollution EXCEPT:

• Spread of typhoid fever

• Increase in acid rain

• Lead and Mercury poisoning

What are examples of non-point source pollution?

• Factory Spill

• Oil Spill

• Wind and Water

What best represents a nonrenewable resource?

• timber

• fish

• oil

A major advantage of using renewable natural resources rather than nonrenewable natural resources is that renewable resources

• do not produce pollution

• are replenished more quickly

• do not have to be conserved