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Rivers can become shallow over time due to sediment accumulation, where particles from upstream erosion settle in the riverbed. Additionally, changes in land use, such as deforestation or construction, can increase runoff and sediment load. Natural processes like droughts can also reduce water flow, further contributing to shallower conditions. Lastly, human activities like dam construction can alter flow patterns, impacting sediment transport and deposition.

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3d ago

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