Question

What is the reason behind the formation of Pedocal soil in Rajasthan?
A. Excessive evaporation
B. Large number of rivers
C. Presence of desert
D. Higher irrigation

Answer 1

Hint: The regions of Rajasthan are arid and semi-arid. Due to the little vegetation and low humus content, the soil turns light blue. The soil is a subdivision of the zonal soil order.

Complete Answer: In drier and temperate areas where the usual type of vegetation are grassland and brush Pedocal soils are formed. A subdivision of the zonal soil order, Pedocal is formed in the climate which receives less than sixty-five cm per year.
A calcite enriched layer is formed, by which pedocal is named for it. Through the layers, the water begins to move down and begins to evaporate before it gets very far.
The regions of Rajasthan are arid and semi-arid, in these regions evaporation always exceeds precipitation. Due to the little vegetation and low humus content, the soil turns light blue.
In the adjacent arid and semi-arid regions of Rajasthan, excessive evaporation makes soils lime accumulating. Thus the Pedocal soil is formed in Rajasthan.

While talking about the other option,
B. The highly productive soil or the Alluvial soil is present along with a large number of rivers.
C. The desert soil or the Aridisols are found in the desert areas. It is the most sandy soil which is found in the regions with low rainfall.
D. Clay soil, also known as the loam soil is the best-suited soil for surface irrigation.

Thus the correct option is A.

Note: The climate of the state of Rajasthan keeps changing throughout the state. The climate remains hot and dry in desert areas and in winters the climate remains cold. To the west, the amount of humidity and rainfall remains low, whereas in the east the conditions are totally opposite.