Enlist the functions of manures.

The functions of manures are listed below:
(i) Provides humus to the soil.
(ii) Improves texture and chemistry of soil.
(iii) Removes general deficiency of the soil.
(iv) Retains water in the soil.
(v) Prevents soil pollution.
(vi) Crop products are pollution free.
(vii) Provides elements/nutrients to the soil that are essential for plant growth.