A level,steplike landform that develops when a stream erodes its bed so that an essentially horizontal surface is raised relative to the channel is called

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An alluvial terrace is a level, steplike landform that develops when a stream erodes its bed so that an essentially horizontal surface is raised relative to the channel. Alluvium, option A, is the material deposited by a river, whereas an unpaired terrace, option C, refers to a terrace that does not have a corresponding terrace on the opposite side of the valley. An alluvial fan, option D, is an alluvial deposit formed at the base of a mountain by the deposition of sediment transported by a stream. Colluviums, option E, are unconsolidated sediments that accumulate at the base of a slope or cliff.

A Level,steplike Landform That Develops When a Stream Erodes Its