Question

Humus in soil is necessary for plant growth
because it
(a) increases aeration and water absorption
capacity of soil
(b) makes soil compact
(c) makes soil sterile
(d) decreases rate of percolation

Answer 1

HERE IS YOUR ANSWER MATE:-

(C) Is your answer mate.

It makes soil sterile.

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Answer 2

(B) MAKES SOIL COMPACT