Soil is defined as the upper layer of the earth composed of loose surface material.
It is a mixture of many substances including an endless variety of minerals, remnants of plants and animals, water and air.
It is the end product of continuing interaction between the parent material, local climate, plant and animal organisms, and elevation of the land.
When the soil is lost, property and culture are also lost.
Therefore, it is a valuable national and fundamental earth resource of the country.
Major Soil Types
The soils of India are broadly divided into the following six types:
 Alluvial Soils
 Red Soils
 Laterite Soils
 Desert Soils
 Mountain Soils