Answer:the correct answer is D. oceanic trenches
Explanation:
For the answer to the question above, it is the first choice which is t<span>he climate cooled and many tropical areas experienced freezing temperatures for the first time.
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Answer:
Plants and bacteria are two other major biotic components of the Great Barrier Reef. Bacteria act as decomposers for this ecosystem, and they break down dead organic matter and convert it into energy that can be used by other living things in the ecosystem.
<span>At a convergent boundary a seafloor is destroyed. </span>