Question

7. Which one of the following does not add nutrients to the soil?
a. crop rotation
b. field fallow
c. manures
d. ploughing
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Answer 1

Answer:

Ploughing

Explanation:

Ploughing is a method to loosen the soil. It brings the soil that is rich in nutrients to the top from layers below, but does not add any nutrients to the soil.

Answer 2

Answer:

d. Ploughing don't add nutrients to soil