Discussion
Which of the following measures are effective for soil conservation in India?
I. Avoiding crop rotation
II. Afforestation
III. Encouraging the use of chemical fertilizers
IV. Limiting shifting cultivation
Answer: B
II and IV - afforestation and limiting shifting cultivation.
Tree roots bind the soil and the canopy breaks the force of rain, while shifting cultivation strips cover and leaves slopes bare. Crop rotation should be encouraged, not avoided, and chemical fertilisers do nothing for soil structure - overuse degrades it.
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