Unit 2 lesson 4 Farming and Industry Hurting Earth's Systems

Most farmers pollute soil bu purposefully adding

• fertilizer

• fossil fuels

• methane

• acid rain

What is the benefit of contour plowing?

• It takes out fertilizer.

• It reduces soil erosion

• It deposits extra soil.

• It adds nutrients to the soil.

Using nuclear power to produce electricity can cause water pollution by

• blocking sunlight from reaching part of a river.

• removing trees from the bank of a river.

• building dams along the path of a river.

• warming the water in a nearby river.

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Mining destroys landforms and creates ____ pollution.

• land

• air

• water

• all of the above

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Harmful chemicals react with ____ to create smog.

• sunlight

• water vapors

• fossil fuels

• air particles

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How does straightening a river affect the environment?

• Faster moving water causes the water to heat up.

• Toxic waste is added to the river.

• Faster moving water causes more erosion.

• Deeper water results in less flooding.

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NGSS.MS-ESS3-4

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_____ can be reduced by contour plowing.

• topsoil erosion

• water pollution

• clear-cutting

• agricultural waste

What causes a body of water to become "dead"

• toxic materials causing algae to die

• toxic materials causing fish to die

• fertilizers causing algae to grow

• fertilizers causing fish to grow

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Methane affects the environment by

• polluting streams and rivers

• contributing to global warming

• causing topsoil erosion

• killing weeds and insects.

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Maddie is talking with the farmers in her community about the ways her farm affects all of Earth's systems, often in harmful ways. She wants to suggest a farming practice that could be used to protect Earth's systems instead of harming them. Which of the following farming practices should she suggest?

• Use airplanes to spray chemicals on crops.

• Use contour plowing to reduce soil erosion.

• Release animal waste into lakes and rivers.

• Cut down trees to make more open land for farming.

Tags

NGSS.MS-ESS3-4

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