A watershed canal __________________?
Correct answer: D. Avoids the cross drainage works
- A. Irrigates only on one side
- B. Is most suitable in hilly areas
- C. Is generally aligned parallel to the contour of the area
- D. Avoids the cross drainage works
Explanation
A watershed canal follows the watershed divide, so drainage water does not normally cross the canal and costly cross-drainage works are avoided. A canal running parallel to contours is a contour canal, not necessarily a watershed canal.
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