Question

Read the following statements about black soils
(A). These have dark colour.
(B). These have high clay content.
(C). These have low CEC.
(D). These are rich in organic matter and nitrogen.
(E). These are normally suitable for cultivation of cotton.
Choose the correct answer from the options given below:

• A. (A), (B), (D) and (E) only.
• B. (A), (B) and (E) only.
• C. (A), (B), (C) and (D) only.
• D. (B), (C) and (D) only.

Hint:

Black soils are characterised by a high content of ______Montmorillonite clay______, which behaves like a sponge (expanding when wet and shrinking/cracking when dry).
This high-clay mineralogy guarantees a ______high CEC______, directly contradicting statement (C).

Answer 1

The Correct Option is B