Question

Which of the following statements about agricultural productivity in desert regions is false?

1. Regions like the Nile Valley, Imperial Valley, and Indus Valley are agriculturally productive due to irrigation.
2. Desert soils are generally fertile and do not require special management practices.
3. Vulnerability to salt build-up is a concern in irrigated desert agricultural areas.
4. Water logging can be a problem in agricultural areas within desert regions.

• A. 1, 3, 4
• B. 3 only
• C. None of these
• D. 4 only

Answer 1

Answer:

A. 1, 3, 4

• Desert soils form under arid conditions. In the absence of water, leaching plays a limited role in soil formation.

• The absence of organic matter makes the soils pale in colour, pale grey and pale red being com-mon colours.

• Soils are quite fertile and a range of crops are produced wherever irrigation is available.

• The Nile Valley in Egypt, The Imperial Val-ley in USA, and The Indus Valley in Paki-stan are agriculturally productive but the soils need careful management as they are vulner-able to salt build-up and water logging produced wherever irrigation is available.

• The Nile Valley in Egypt, The Imperial Val-ley in USA, and The Indus Valley in Paki-stan are agriculturally productive but the soils need careful management as they are vulner-able to salt build-up and water logging