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Consider the following agricultural practices

Consider the following agricultural practices:
1. Contour bunding
2. Relay cropping
3. Zero tillage
In the context of global climate change, which of the above helps/help in carbon sequestration/storage in the soil?

(a)

1 and 2 only

(b)

3 only

(c)

1, 2 and 3

(d)

None of them

Answer:

(b)

Core Books/NCERT

Explanation

Zero tillage helps in carbon sequestration by reducing soil disturbance, which preserves soil organic carbon. Relay cropping does not directly contribute to carbon sequestration.