Streams and rivers {river, water} receive water directly from rain and indirectly from water runoff from land. Streams are usually wider than they are deep, and erosion sediments can fill them within years. Stream first erodes into valley. Then tributaries enter valley and join first stream. Then valley sides wear down to make wide valley or wear back to make deep valley.
Physical Sciences>Earth Science>Water>Fresh>Areas>River
5-Earth Science-Water-Fresh-Areas-River
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Date Modified: 2022.0224