state gov BPSC Assistant Revenue & Accounts Officer Test Series 2025 General Knowledge Geography (World Geography) Biogeography
Which among the following statements is/are correct with respect to soil profile?
1
Top soil or A-horizon of soil profile contains humus
2
Upper most layer of A-horizon of soil profile is the most suitable for growth of plants due to its high water retaining capacity
3
Below C- horizon of soil profile is not considered as soil
4
All of the above