|Which among the following are mechanical method of soil conservation?|
|3. Contour farming|
|4. Stubble mulching|
|Select the correct answer using the codes given below.|
A) 1, 2 and 3 only
B) 1, 3 and 4 only
C) 2, 3 and 4 only
D) 1, 2 and 4 only
Correct Answer: A
Solution :[a] Stubble Mulching is not a mechanical method, but a crop management technique that helps in soil conservation.
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