Ariver will break down rock into sediment through the process of the sediment is then carried away by the river through the process of erosion. during flooding events, sediment is added to the river's floodplain by the process of

Weathering , Deposition

Explanation:

A river will break down rock into sediment through the process of weathering. Weathered sediment is then carried away by the river through the process of erosion. The river eventually deposits the sediment in the river channel, at the river's mouth, or on the river's floodplain.

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rocks and weathering-matching

b

explanation: