Question

The soils of Tamil Nadu may be grouped into __________ types.
A.Two
B.Three
C.Four
D.Five

Answer 1

Hint: Soil is the thin layer of material covering the earth's surface and is formed from the weathering of rocks. It is composed primarily of mineral components, organic substances, air, water and living organisms. All of these interact gradually yet continuously. Soil profile showing the different layers or horizons.

Complete Answer: The soils found in Tamil Nadu are:

Alluvial Soils: The soils are formed due to weathering of materials transferred by rivers from their catchment regions and deposited in their basins during floods.

Black Soils: The soils are the residual soils which are formed under semi-arid conditions.

Red Soil: The soils develop on crystalline rocks due to extended weathering in hot climate.

Laterite Soils: These soils are residual soils which are generated on aluminum-rich rocks. For example, sandstone, granite and basaltic rocks in regions. They are usually formed in areas of high rainfall with changing wet and dry seasons.

Forest, peat and organic soils: Forest soils usually develop in regions which are under massive forest cover.
Hence, the correct option is D.

Note:
- Soils are a house to myriad micro-organisms that fix nitrogen and decay organic matter. Without soil human life would be very hard as they have a significant role in the Earth's ecosystem.
-Many schemes have been implemented by the government in order to conserve soil.