The first (correct and rational) answer gets brainliest

by dissolving compounds from rocks (I think)

Explanation:

I think this is the answer because rocks dissolve or erode into smaller things or sand

plato users

given bodies of water

pacific / arctic / indian / southern

[ a ] the caribbean sea

[ b ] the northern ocean

[ c ] the atlantic ocean

[ d ] the barents sea

with this being the given answers