SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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By digging canals
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Through afforestation
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Through artificial rains
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By constructing water reservoirs
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Detailed explanation-1: -The afforestation is planting of trees at various places. Planting trees near and in the vicinity of the Thar desert would help to check its expansion as the newly planted trees would get affected due to the expansion of Thar.
Detailed explanation-2: -So, to check the expansion of the Thar Desert, Afforestation is the best method. Thus, option (C) is correct.
Detailed explanation-3: -But catastrophe struck around 100, 000 years ago when rainfall declined sharply and the already sluggish river system began shifting westward. Strong winds lifted sand and silt particles from alluvial sediments and deposited them in the region, and the true desert began to form.
Detailed explanation-4: -The Thar Desert covers some 77, 000 square miles (200, 000 square km) of territory. It is bordered by the irrigated Indus River plain to the west, the Punjab Plain to the north and northeast, the Aravalli Range to the southeast, and the Rann of Kachchh to the south.
Detailed explanation-5: -The sparse vegetation consists of plants adapted to growing in dry conditions, known as xerophilous plants. These include several kinds of grass and scrub-type vegetation of low trees of Acacia, Prosopis, Tamarix, and Zizyphus.