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Q.

Availability of water and minerals in the soil for maximum absorption by roots is in the –

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a

B-horizon

b

  C-horizon 

c

 A-horizon

d

 surface of soil

answer is C.

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Detailed Solution

  • The soil is made up of weathered rocks that contain certain amounts of organic matter, water, air, and other elements.
  • A soil profile is divided into layers called horizons. The main soil horizons are A, B, C and D. Most important for plant growth, the A and B horizons are the top two layers of the soil
  • The A-uppermost horizon's layer is the part of the soil profile that is best for plant growth because
  • It contains a lot of humus, which gives plants the nutrients they need to flourish.  It is soft and porous and retains more water
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