Black soil properties

Questions from TNPSC Group 1 Exam:
General Science :

Q. With reference to the black soil,consider the following statements:
1. It is Generally Clayey,deep and impermeable.
2. They Swell and become sticky when wet and shrink when dried.
3. It retains the moisture for a very long time.

Which of the following statement is/are correct?
A. 1 Only C. 1 and 2 Only
B. 3 Only D. 1,2 and 3

Answer: 1, 2 and 3
All the statements are true.

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