Question

To check the expansion of Thar desert which one of the following methods is expected to yield the best results?
A. Artificial rain
B. Construction of canals
C. Afforestation
D. Construction of dams

Answer 1

Hint: The Thar desert is spread in the states of Rajasthan, Punjab, Gujarat, and Haryana. Its area is 238,254 sq. km. It also forms a natural border between India and Pakistan.

Complete step-by-step solution:
There are many changes that occur in our ecosystem. Similarly, the area of the Thar Desert may expand or decrease. Afforestation is the planting of trees. Tree seedlings could also be used. This can be done naturally or artificially. Due to the Afforestation, a place could be filled with greenery and pollution would be reduced. Not only this but also Afforestation leads to a good amount of rainfall. Problems like soil erosion could also be reduced. Afforestation is also done for the purpose of wood, timber, medicines, etc. The level of carbon dioxide in the environment could also be reduced. This also reduces the greenhouse effect or global warming. If Afforestation is done in some place, the climatic conditions of that place may affect the planted trees. So, the plants which are suitable to grow should be chosen based on the temperature, climatic conditions, type of soil, and the availability of water. The demand for wood is also increasing day by day and the forests are cut down for the purpose of wood. The trees are being planted at a much slower rate than cutting them down. Deforestation should be reduced and Afforestation should be practiced for a healthy lifestyle. So, to check the expansion of the Thar Desert, Afforestation is the best method.

Thus, option (C) is correct.

Note: As the climate changes, the success of the pests would also increase. As the temperatures rise in the west of North America and the winters become warmer, the pine beetle’s population is not decreased as it is supposed to be in winter.