Q57 · UPSC Prelims 2021 · Set A · Geography

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

A Sugarcane
B Sunflower
C Pearl millet
D Red gram

Correct answer: (a) Sugarcane

Explanation

  1. A

    Sugarcane

    Sugarcane. Highest water use among the four; flood/furrow cane is thirsty.

  2. B

    Sunflower

    Sunflower. Oilseed; far less water than cane.

  3. C

    Pearl millet

    Pearl millet. A dryland millet.

  4. D

    Red gram

    Red gram. Pulse; relatively water-efficient.

Summary. Official key is (a) sugarcane. Among these four it is the least water-efficient. Bajra, arhar and sunflower are the dryland/oilseed contrast.

Same topic · past papers

UPSC has asked this before

These previous-year questions sit on the same topic. Open one to practise the earlier ask.

  1. 2025 · Q28 · General Studies · 2 marks

    Consider the following statements: Statement I: In the context of effect of water on rocks, chalk is known as a very permeable rock whereas clay is known as quite an impermeable or least permeable rock. Statement II: Chalk is porous and hence can absorb water. Statement III: Clay is not at all porous. Which one of the following is correct in respect of the above statements?

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  2. 2020 · Q87 · General Studies · 2 marks

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