Humans and the environment quiz

How is an ecological footprint determined?

• An ecological footprint is determined by measuring the average amount of land and water that a person in a region uses.

• An ecological footprint is determined by measuring carbon dioxide emissions for a given region.

• An ecological footprint is determined by measuring the rate of water use.

• An ecological footprint is determined by measuring the amount of waste generated in a given region.

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Rainforests around the world are being cleared at an alarming rate to make room for new communities, agriculture, mining, and roads, and to provide lumber for construction and furniture.

How might the destruction of rainforests affect the balance of gases in Earth's atmosphere?

• by increasing carbon dioxide and decreasing oxygen

• by increasing carbon dioxide and increasing oxygen

• by decreasing carbon dioxide and increasing oxygen

• by decreasing carbon dioxide and decreasing oxygen

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Which sustainable practice is paired correctly with its impact on the environment?

• Using bamboo results in an increased use of forest trees.

• Practicing contour plowing results in a need for more land.

• Setting irrigation systems to run longer results in a reduction of water use.

• Building more wind farms results in a reduction of fossil fuel use.

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Which of the following practices will lead to sustainability?

• increased groundwater pumping

• fossil fuel use

• conservation tillage

• increased pesticide use

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Which of the following best explains why deforestation increases the risk of floods in an area?

• Tree leaves catch and retain rain water.

• Trees block the free flow of water.

• Deforestation increases precipitation.

• Tree roots improve soil water retention.

Which is most likely a source of air pollution?

• littering

• CFCs

• oil spill

• runoff

Which of the following scenarios is representative of how agricultural practices can affect the environment?

• increased oxygen levels in a pond due to fertilizer runoff

• sediment accumulation in a body of water near a farm

• soil compaction caused by tillage

• increased plant growth caused by the application of herbicides

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Continued deforestation will most likely lead to _______.

• a decrease in the number of endangered species

• an increase in the number of endangered species

• an increase in the number of oil and chemical spills

• a decrease in glacial melting

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Which of the following energy sources is expected to have the highest rate of consumption in 2030?

• coal

• natural gas

• nuclear

• renewable energy

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Natural resources are classified as renewable and nonrenewable. What is the difference between the two?

• whether or not the resource exists in nature

• whether or not the resource can be replaced

• whether or not the resource dwindles in supply

• whether or not the resource is useful to humans