When you travel in certain parts of India, you will notice red soil. What is the main reason for this colour?

In which one of the following areas in India , the problem of soil erosion is critical?

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

Soil which develops in conical forest of Taiga region is

Which of the following is concerned with soil?

The black cotton soil of India has been formed due to the weathering of :