Question

4. Humus is an important part of soil because it
a) helps clay particles to stick together
b) increases the ability of sand to hold water
c) makes the soil fertile
d) helps in nitrogen fixation​

Answer 1

Answer:

c)makes soil fertile

Explanation:

Humus is very rich in nutrition and therefore it helps in soil fertility.

Hope it helps

Answer 2

Answer:

Humus is an important part of soil because it makes the soil fertile.

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