At a delta,____________.
A) stream gradient decreases
B) a single channel breaks into multiple, radiating distributary channels
C) a and b are both correct.
D) None of the above are correct.

Question

Quizplus · Accepted Answer

At a delta, both the stream gradient decreases and a single channel breaks into multiple, radiating distributary channels. A delta is a landform created at the mouth of a river where it meets a standing body of water, such as a lake or an ocean. As the river flows into the standing water, its velocity decreases, causing the stream gradient to decrease. Due to the reduced velocity, the sediment carried by the river begins to settle out and is deposited at the mouth of the river. Over time, this deposition creates a fan-shaped or triangular landform, with a single channel breaking into multiple channels called distributaries.

At a Delta,____________