Which of the following is true about how a stream erodes material?
A)Abrasion is concentrated on the upstream side of obstructions.
B)Turbulence of the water is less important than the temperature,which affects viscosity.
C)Erosion occurs equally on two sides of a bend.
D)Water cannot erode unless it is carrying sediment.
E)All of these are correct.

Question

Quizplus · Accepted Answer

Abrasion is concentrated on the upstream side of obstructions because that is where the water is forced to flow faster, causing more erosion. The other options are incorrect. Turbulence plays a significant role in erosion, the temperature of the water does not affect viscosity enough to impact erosion, erosion is generally more pronounced on the outer bend of a curve in a stream, and water can erode even without sediment if it is moving fast enough.

Which of the Following Is True About How a Stream