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 Major source of mineral in soil is the

(a) parent rock from which soil is formed
(b) plants
(c) animals
(d) bacteria

Answers (1)

Answer: A

Solution.

The bulk of the soil solid fraction is constituted by soil minerals, which exert significant direct and indirect influences on the supply and availability of most nutrient elements.
All soils initially come from rocks; this is termed the ‘parent material’. The Parent Material may be directly below the soil, or great distances away if wind, water or glaciers have transported the soil.
The formation of soils can be seen as a combination of the products of weathering, of structural development of the soil, of differentiation of that structure into horizons or layers, and lastly of its movement or translocation.
Hence, the correct option of this question is option A

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