Question

The dark soil usually rich in _______

(i) color
(ii) humus
(iii) rocks
(iv) mud ​

Answer 1

Answer:

answer is 2nd humus

Explanation:

Humus is dark in color because it has a high mineral content; it can also absorb and drain water. The top two layers of soil are usually highest in organic matter and are darker than lower levels.

Answer 2

Answer:

humus may be

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