UPSC Previous Year Question | Prelims GS | 2021

Among the following, which one is the least water-efficient crop?

  1. Sugarcane
  2. Sunflower
  3. Pearl millet
  4. Red gram

Answer

Correct Answer

Sugarcane

Explanation

Sugarcane is a highly water-intensive crop that needs very large volumes of water per unit of output, whereas sunflower, pearl millet (bajra) and red gram (arhar) are comparatively drought-tolerant and more water-efficient.

Topics: agriculture, cropping & irrigation, least water-efficient crop, water-use efficiency