A natural, meandering, river channel is modified into a more or less straight and smooth, canal- like 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 straight channel has a higher gradient and more friction than the natural channel.
C)The natural channel had a lower gradient and less friction than the modified 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 the irregularities and obstacles along its course, compared to a straight, smooth, canal-like channel.

A Natural, Meandering, River Channel Is Modified into a More