Answer:
Cliff and Cracks, Sink under ocean I know for sure.
Explanation:
We have mountains because of convergent plates. they push eachother up and make cliffs. i also know sink under the ocean because we have underwater volcanoes for that reason
I would think it’s DNA replication
Hope that helped
Sorry if it’s wrong
Explanation:
D. A change in the amount of polar ice will alter how ocean currents move.