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? Group of answer choices The straight channel has a higher gradient and more friction than the natural channel. The natural channel had a lower gradient and less friction than the modified channel. The natural channel had a lower gradient and higher friction than the straight channel. All of the above statements are true.

Question

Catherine

Social Studies

7 August, 19:18

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? Group of answer choices The straight channel has a higher gradient and more friction than the natural channel. The natural channel had a lower gradient and less friction than the modified channel. The natural channel had a lower gradient and higher friction than the straight channel. All of the above statements are true.

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Answers (1)

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Gillespie · Answer 1

The natural channel had a lower gradient and higher friction than the straight channel.

Explanation:

For a rover that has a naturally meandering river channel gets modified into a more of less canal-like structure and this is due to the natural gradient of the river which has a lower gradient and has a higher friction force than the straight channel.