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Chapter 36 Reading

 

Multiple Choice

Identify the letter of the choice that best completes the statement or answers the question.

 

____    1.   An increase in Earth’s average temperature from the buildup of carbon dioxide and other gases in the atmosphere is called

a.

transpiration.

b.

ozone depletion.

c.

global warming.

d.

eutrophication.

 

 

____    2.   Organisms that obtain nutrients by breaking down wastes and dead organisms are called

a.

decomposers.

b.

omnivores.

c.

herbivores.

d.

producers.

 

 

____    3.   Nitrogen fixation is carried out primarily by

a.

humans.

b.

plants.

c.

bacteria.

d.

carnivores.

 

 

____    4.   As PCBs move up the trophic levels in food chains, or food webs, their concentration

a.

stays the same.

b.

increases.

c.

decreases.

d.

is eliminated.

 

 

____    5.   The total of the variety of living organisms in the biosphere is called

a.

an ecological pyramid.

b.

sustainable development.

c.

biodiversity.

d.

conservation biology.

 


 

 

Exploring Life - Reading Homework Quiz

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Question 1
A B C D E F G H

Question 2
A B C D E F G H

Question 3
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Question 4
A B C D E F G H

Question 5
A B C D E F G H

Question 6
A B C D E F G H

Question 7
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Question 8
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Question 9
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Question 10
A B C D E F G H
 

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