When a river reaches a base level,its forward velocity rapidly decelerates as it enters a larger body of standing water.Which feature is formed?
A)An estuary.
B)An alluvial terrace.
C)A delta.
D)A stream terrace.

Question

Quizplus · Accepted Answer

A delta is formed when a river reaches its base level and its forward velocity rapidly decelerates as it enters a larger body of standing water, causing it to deposit sediment and form a triangular-shaped landform at the mouth of the river. An estuary is a partially enclosed body of water where freshwater from a river mixes with saltwater from the ocean. An alluvial terrace is a flat, elevated landform that forms on the side of a river valley as a result of sediment deposition by the river. A stream terrace is a flat, elevated landform that forms along the side of a stream channel due to lateral erosion or downcutting by the stream. None of these features are directly related to the rapid deceleration of a river at its base level.

When a River Reaches a Base Level,its Forward Velocity Rapidly