Which should people be more concerned about - weathering or erosion? Why?

In order from largest to smallest what are earths five main oceans

What factors britain to become an industrial and commercial power?

How does rain water cause erosion and deposition? a. when acidic water soaks into the ground, water dissolves limestone, resulting in the formation of caves.b. when a river overflows it moves downhill resulting in the formation of caves.c. when it rains, water flows into rivers and streams and moves back to land, resulting in the formation of caves.d. when water empties into lakes, sediment is deposited, resulting in formation of caves.