Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
Humus is found in:
✓
Top portion of soil
B
Middle portion of soil
C
Deep portion of soil
D
All layers of soil
✓
Answer
Correct option: A.
Top portion of soil
Humus is found at the top of the soil structures. It is dark coloured and spongy, which is rich in mineral and organic matter and shows maximum biological activity. It is formed by the decomposition of leaves and other plant material by soil microorganisms.
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