1. Red soil is formed due to weathering of igneous and metamorphic rocks.
2. It is highly porous and less fertile but where it is deep it is fertile.
3. It is less crystalline.
4. It is red in colour due to the presence of iron in it.
They occur in parts of Tamil Nadu, Karnataka, Andhra Pradesh, Orissa and Jharkhand.
1. It is formed by the leaching process in the heavy rainfall areas of tropical India.
2. It is less fertile, only grass grows on it in abundance.
3. It is crystalline.
4. It is red in colour due to little clay and much gravel of red sand-stones.
5. It is found in hills of the Deccan, Karnataka, Kerala, Orissa, Assam and Meghalaya.