i think c. is the best answer , we just got off that topic like a week ago .
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Answer:</h3><h3>brainiest </h3><h3>
Explanation:</h3>
Answer: A decrease in a number of trees—plant new ones and protect existing trees
The loss of a bird habitat—provide nesting boxes
An endangered aquatic species— regulate recreational activities such as boating and fishing
A increase in air pollution— encourage public transportation
I hope this helps!