Which of the following is/are not the characteristics of red soils?
I. They are derived from weathering of old crystalline and metamorphic rocks
II. They contain iron oxides
III. They have high water retention capacity
IV. They have high nitrogen content

A. Drainage B. Deforestation C. Weathering D. Grazing

A. Red soil B. Desert soil C. Black soil D. Brown soil

A. Regur B. Bangar C. Kallar D. Khadar

A. Farming on the slopes of Western Ghats B. Farming in the thickly populated areas C. Farming in the thinly populated areas D. Farming in the forests of equatorial region