I believe that is deforestation
Acid rain. burning fossil fuels releases a form of sulfur into the air which causes acid rain
Answer: A compound or light microscope
Explanation:
Answer:
B.
Explanation:
It isn't any of the others and the competitive exclusion principle talks about how two similar species cannot coexist under the same resources for long. I suppose you could conclude they were trying to fullfill the same niche, but only under the assumption of comp. exclusion. So just B.