Availability of water and minerals in the soil for maximum absorption by roots is in the
  1. B-horizon
  2. C-horizon
  3. A-horizon
  4. surface of soil

AcademicChemistryNCERTClass 7

Correct Answer: (c) A-horizon 

Explanation: A – horizon is topsoil, rich in humus. Humus improves the texture of the soil, increases soil aeration and water holding capacity of soil as well as provides nutrients to the growing plants. This soil layer also contains minerals. Humus and minerals make the soil fertile and favour plant growth.

Updated on 10-Oct-2022 13:21:38