Engineers modify a natural, meandering, river channel is modified into straight and smooth channel. Which of the following statements is correct?
A) The natural channel had a lower gradient and higher friction than the straight channel.
B) The natural channel had a lower gradient and less friction than the modified channel.
C) The straight channel has a higher gradient and more friction than the natural channel.
D) All of the above statements are true.

Question

Quizplus · Accepted Answer

The natural channel typically has a lower gradient due to its meandering path and higher friction because of its irregularities and interactions with the riverbed and banks, compared to a straight and smooth channel which is designed to reduce friction and potentially increase the gradient for more efficient water flow.

Engineers Modify a Natural, Meandering, River Channel Is Modified into Straight