The landscapes, especially those in which the action of man is constant, undergoes changes quickly. Determine which factors motivate the change of the environment over time (Sorry if my english is bad)

Why does sweden and norway have steep roofs

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.

Major river of southeast asia flowing through laos thailand vietnam and cambodia