Where does the water in streams and rivers originate?
a. precipitation
b. runoff
c. ice and snowpacks
d. all of the abovemost of the water you see flowing in rivers comes from precipitation runoff from the land surface alongside the river.

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.