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in stream valleys
mass wasting on the valley sides
i think that when the water reaches the surface, it dissolves into the ground which is called infiltration (the movement of water through soil) which then flows down from the tiny spaces in the bedrock and then it forms into a ground water, which is then released into and ocean or a lake.
i don't know the cause, but the effect is that lake and stream levels will drop!!
"Groundwater flow is the movement of water that travels and seeps through soil and rock underground. Stored in cavities and geologic pores of the earth's crust, confined groundwater is under a great deal of pressure. Its upper part is lower than the material in which it is confined. Unconfined groundwater is the term for an aquifer with an exposed water surface."
in stream valleys
yes through surface run-off or groundwater flow
River valleys are formed by stream erosion.
valleys are made when a stream erodes at the sides and bottom.
Stream valleys are a great place to settle since it provides you with fresh water and fertile soil for planting crops.
stream erosion
DELTA AND TOMBOLO :p
mass wasting on the valley sides
River/stream cut valleys are 'V' shaped while Glacial valleys are 'U' shaped.
In swampy areas, the water table is very close to the surface. In streams it is lower and in hilltops it is very low.
Streams that are first forming.
The start