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15 votes
Why is humus important?

A)
It increases soil porosity.
B)
It decreases soil acidity.
C)
It increases soil basicity.
D)
It decreases water movement.

User KUSHA B K
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2 Answers

7 votes
A. It increases soil porosity
User Jules Patry
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9 votes
I’m not sure what it is but I think it’s B
User Evgeni Sergeev
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