College Prep - Env Sci- Nutrient Cycles Ch. 3 Test Review

Question 1

Animals get their carbon when

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they eat plants or other animals.

Question 2

The energy that drives the water cycle comes from:

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The sun

Question 3

The overall amount of water on earth stays roughly the same.

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True

Question 4

Water seeps underground and becomes groundwater. This is called:

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Percolation

Question 5

People add carbon dioxide to the air when

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All are true

Question 6

This picture shows the

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Carbon Cycle

Question 7

Carbon is released back into the atmosphere when organisms

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perform Cellular Respiration., Both are true

Question 8

Plants get their nitrogen by a close relationship with:

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bacteria

Question 9

This picture shows the

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Nitrogen Cycle

Question 10

Cellular Respiration and Photosynthesis are opposite processes of one another.

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True

Question 11

What reaction is this?

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Cellular Respiration

Question 12

Plants lose water through their leaves. This is called

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Transpiration

Question 13

The sun heats up water causing it to turn into water vapor. This is called

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Evaporation

Question 14

Phosphorous is important to living things

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to make DNA and RNA.

Question 15

What carries out nitrogen fixation?

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bacteria

Question 16

Carbon enters the ecosystem when producers take in

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Carbon Dioxide

Question 17

Water may run into rivers, streams and eventually back to the ocean. This is called:

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Runoff

Question 18

The process where water falls back to the earth is called

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Precipitation

Question 19

Organisms need nitrogen so that they can make

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Proteins

Question 20

Which gas makes up 78% of our atmosphere?

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Nitrogen

Questions 20