Which of the following examples best illustrates an effect of pollution on an ecosystem?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
A net was dragged across the sea floor off the coast of California, trapping the majority of fish in the area and damaging kelp forests.

(Choice B)
B
A large region of old-growth trees was removed from a Canadian forest and used as lumber for new houses, eliminating woodland habitat.

(Choice C)
C
Military sonar caused the beaching of numerous whales whose deep-sea hunting normally maintains the size of local fish populations.