Question

Arid soils range from red to brown in colour. They are generally sandy in texture and saline in nature. In some areas, the salt content is very high and common salt is obtained by evaporating the water. Due to the dry climate, high temperature, evaporation is faster and the soil lacks humus and moisture. The lower horizons of the soil are occupied by Kankar because of the increasing calcium content downwards. The Kankar layer formations in the bottom horizons restrict the infiltration of water. After proper irrigation, these soils become cultivable as has been in the case of western Rajasthan.

What does the Kankar layer formation restrict in the bottom horizons?

Options

• The Kankar layer formations in the bottom horizons restrict the infiltration of calcium.

• The Kankar layer formations in the bottom horizons restrict the infiltration of mangroves.

• The Kankar layer formations in the bottom horizons restrict the infiltration of water.

• The Kankar layer formations in the bottom horizons restrict the infiltration of air.

Answer 1

The Kankar layer formations in the bottom horizons restrict the infiltration of water.