What kind of soil is found in the northern plains?
Alluvial Soil :-
These are fertile soil deposited by rivers on and near their banks. These soils are majorly found in the northern plains of the country. The most fertile alluvial soil is found in the Ganga valley, where it is deposited by river Ganges. These soils cover almost 35-40% of the region of India.
These soils are rich in minerals especially potash. They are a dark shade of grey and are extremely suitable for agriculture. Some dark black alluvial soil can also be found in coastal areas.