C. because the water erodes the rock away because it's jus sitting there gettig moist...like think about cereal wen it jus sits there in milk it gets moist and soggy
<span>Mass extinctions when at least half of all species die out. The largest mass extinction event occurred around 250 million years ago, when perhaps 95 % of all species went extinct. Now new ones appeared.
It was during Cretaceous.
Hope this helps !
Photon</span>
Answer:
i think the answer to your question is B
Explanation:
