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3.13 Unit 3 Test: Cycles on Earth

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Last updated almost 5 years ago
19 questions
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Question 1
1.

In the carbon cycle, animals can release carbon back into the cycle through ___________ or through ____________.

Question 2
2.

Which of the following is an example of human impact on the carbon cycle?

Question 3
3.

The burning of fossil fuels releases which of the following gases into the atmosphere?

Question 4
4.

What impact can deforestation have on the carbon cycle? Select all that apply.

Question 5
5.

The use of fossil fuels is a concern because it can lead to which of the following?

Question 6
6.

Where is the largest carbon sink (storage) of carbon on earth located?

Question 7
7.

The carbon cycle works in conjunction with which of the following?

Question 8
8.

This is a way of describing all the carbon an individual, organization, or country puts into the atmosphere.

Question 9
9.

What is permafrost?

Question 10
10.

A consequence of permafrost melting is that methane is released into the atmosphere. What is being exposed through the thawing that is needed for bacteria to make methane?

Question 11
11.

What roles do plants and animals play in the carbon cycle?

Question 12
12.

Name one way that deforestation can add carbon dioxide to the atmosphere. (Cutting down the trees isn't adding carbon dioxide it is just stopping the carbon dioxide from being removed from the atmosphere.)

Question 13
13.

What role do oceans play in the carbon cycle?

Question 14
14.

Carbon is stored in ........

Question 15
15.

ow does the concentration of carbon dioxide in the atmosphere affect climate?

Question 16
16.

Which of the following processes does NOT add carbon to the atmosphere?

The world needs to produce 50 percent more food by 2050 to feed the increasing population. Cows are one of the main sources of food because they are used for meat and dairy items.
Question 17
17.

What greenhouse gas do cows create through their digestive process?

Question 18
18.

Explain one way that cattle production contributes negatively to the environment.

Question 19
19.

Cattle are not the only thing that adds methane to the environment. Explain another way that methane can be added to the atmosphere. I will not accept anything having to do with digestion or flatulence since that is the same way cattle add it.