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erosion

The process by which wind, water, ice, or gravity transports soil and sediment from one location to another

water cycle

the continuous cycle of the transfer of water through an ecosystem, which involves evaporation, transpiration, condensation, and precipitation

tributary

a stream or river that flows into a larger stream or river

watershed

a ridge of land that separates two adjacent river systems

divide

make a division or separation

channel

a long narrow furrow cut either by a natural process (such as erosion) or by a tool

load

leftover materials leftover by a stream

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