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Which of the following examples best illustrates an effect of pollution on an ecosystem?
Choose 1
Choose 1
(Choice A)
A
Cutting down a forest for lumber removes available habitat for local animals, forcing them to move or compete for remaining resources.
(Choice B)
B
The number of wolves in an area declines due to urbanization and hunting, allowing elk and deer populations to grow rapidly.
(Choice C)
C
Nitrogen and phosphorus runoff from agricultural fields creates harmful algal blooms and dead zones in the ocean.
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Answers: 3
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Which of the following examples best illustrates an effect of pollution on an ecosystem?
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