Q1. To check the expansion of Thar desert which of the following measures should be vied?
(a) Construction of dams
(b) Afforestation
(c) Construction of canals
(d) Artificial rain
(UPSC Prelims 1983)
Answer: (b) Afforestation
Explanation: Afforestation helps combat desertification by stabilizing soil, reducing wind erosion, and improving moisture retention. Planting trees and shrubs creates a green barrier that slows the spread of the Thar desert.
