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AP® Environmental Science

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Cause of Pollution Impacting Trout Species

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Created for Albert.io. Copyright 2016. All rights reserved.

The graph above displays the population of trout in a slow moving river over time.

What is the BEST explanation of why trout is decreasing?

A

Hot factory effluent is entering the water.

B

Herbicide runoff is entering the water.

C

An invasive herbivore species was dumped into the water.

D

Due to climate changes, there is an increase in producers in the water.

E

Trees were planted along the river banks, creating more shade.