What does NOT cause an area of rapids on a stream?
A) coarser material from a tributary channel
B) bedrock in the stream channel
C) a landslide involving the stream bank
D) higher than normal water in the stream
E) the headwaters area of many mountain streams

Question

Quizplus · Accepted Answer

Higher than normal water in the stream may cause flooding or a change in the velocity of the water, but it does not necessarily create an area of rapids. Areas of rapids are typically caused by bedrock in the stream channel, coarser material from a tributary channel, or a change in the gradient of the stream. The headwaters area of many mountain streams may also contribute to rapids formation. A landslide involving the stream bank may also cause changes in the flow of water, but it is not a definitive cause of rapids.

What Does NOT Cause an Area of Rapids on a Stream