I think it is the second answer, sorry if it is wrong/didn’t help.
<span>i think it is a.Molecules move against their concentration gradient. hope it helps
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There are tons of answers you could have.
One, for example:
Increased levels of CO2 decreases DO levels in the water and suffocates organisms, leading to population drops that can cause a genetic bottle neck effect, thus decreasing overall biodiversity. This could lead to extinction
Answer:
A option mantle is correct I guess
hope this helps u