Which of the following is not a reason that grain size of sediment tends to decrease downstream?
A) gravity
B) abrasion
C) decreasing shear force
D) rounding

Question

Quizplus · Accepted Answer

Gravity is not a reason for the decrease in grain size downstream; rather, it is the force that causes sediment to move. Abrasion, decreasing shear force, and rounding contribute to the reduction in grain size as sediment is transported.

Which of the Following Is Not a Reason That Grain