The process by which wind, water, ice, or gravity transports soil and sediment from one location to another
the continuous cycle of the transfer of water through an ecosystem, which involves evaporation, transpiration, condensation, and precipitation
a stream or river that flows into a larger stream or river
a ridge of land that separates two adjacent river systems
make a division or separation
a long narrow furrow cut either by a natural process (such as erosion) or by a tool
leftover materials leftover by a stream
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