Human impact on Earth Test

Most of Earth’s water (about 97%) is

• In the clouds.

• In the form of snow or ice.

• Salt water in the oceans.

• Freshwater in lakes and rivers.

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One group of gases that is responsible for destroying ozone in the ozone layer is

• Nitrogen oxides and sulfur oxides.

• CFCs.

• Car exhaust fumes.

• Carbon monoxide and carbon dioxide.

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NGSS.MS-PS1-3

To create less waste in the first place is to

• Reduce.

• Recycle.

• Reuse.

• Incinerate.

A type of landfill designed to hold municipal solid waste safely is

• A compost pile.

• A leachate landfill.

• A sanitary landfill.

• An open dump.

The process of restoring an area of land to a more natural, productive state is

• Desertification

• Erosion

• Nutrient depletion

• Land reclamation

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The study of natural processes in the environment and how humans can affect them is called

• Preservation

• Environmental science

• Resource management

• Conservation

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Which of the following is considered a renewable resource?

• Coal

• Sunlight

• Iron

• Oil

Which of the following is a point source of pollution?

• Polluted air over a city

• Runoff from streets

• Acid rain from fuel emissions

• An oil spill from a truck

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NGSS.MS-ESS3-3

Which of these is not an essential natural resource that humans depend on for survival and for development?

• Water

• Gold

• Trees

• Sunlight

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NGSS.MS-ESS2-4

Using land to grow food crops is an example of

• Mining

• Agriculture

• Development

• Desertification

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NGSS.MS-LS2-5