Multiple choice general knowledge science & technology

Farmers can keep their soil fertile by--------

  1. Crop Rotation

  2. Regular Tilling

  3. Repeatedly growing the same crop

  4. Irrigation
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A Correct answer
Explanation

Crop rotation maintains soil fertility by alternating different crops to prevent nutrient depletion and break pest cycles. Regular tilling can harm soil structure, growing the same crop repeatedly depletes specific nutrients, and irrigation alone doesn't maintain fertility.

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