<span>Large changes in allele frequencies can occur in a short time.
I'm taking the test now and that's what I know.</span>
Answer: B, C, E
Explanation: I got it correct and here is proof.
The appropriate answer is doing. decreased atmospheric water vapor leads to an increased greenhouse effect. This is not true because water vapor is a green house gas and increasing the levels of it in the atmosphere will lead to more warming. All the other answers represent appropriate feedback mechanisms associated with global warming.