Math, asked by yulianagasca96, 4 months ago

Ecosystems can be changed by natural events or by human actions. Which is NOT a natural event?
A. a forest fire started by lightning
B. pollution from a factory entering a river
C. a beaver building a dam in a river
D. an earthquake

Answers

Answered by kinjalgandhi73

1

Answer:

option B is correct

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Answered by Sanket1829

0

Answer:

B.pollution from a factory entering a river

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