What environmental stressors occurred during each of the 5 mass extinctions?

I want to find out for my homework what were the environmental stressors that the environment when through or had when extinctions happened.
deekin
Asked Jan 11, 2017

TIP: If it's not your answer to this question, please click "Leave a Comment" button under the question to communicate with the question owner.

Can you help them?

You may want to know:

Categories