Which of the following statements regarding laterite soils of India is correct?

Which one among the following statements with reference to the black cotton soils of India is NOT correct?

Which one of the following is found in appreciable amount in Laterite soil in India?

Laterite soil in India is rich in which of the following? 1. Calcium 2. Nitrogen 3. Phosphate 4. Potash

Which of the following is concerned with soil?

The term soil impoverishment relates to which one of the following?