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UPSC 2022: Which of the following are nitrogen-fixing plants ? 1. Alfalfa 2. Amaranth 3. Chickpea 4. Clover 5. Purslane (Kulfa) 6. Spinach Select the correct answer using the code given below :
(a)1, 3 and 4 only
(b)1, 3, 5 and 6 only
(c)2, 4, 5 and 6 only
(d)1, 2, 4, 5 and 6
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Not attemptedCorrect Answer: (a) 1, 3 and 4 only
Alfalfa, Chickpea and Clover are legumes that host Rhizobium bacteria in root nodules and therefore fix atmospheric nitrogen. Amaranth, Purslane and Spinach are non-leguminous herbs and do not fix nitrogen. Thus the correct set is 1, 3 and 4 only. ([iasuniverse.com](https://www.iasuniverse.com/answers-with-explanation-upsc-prelims-gs1-paper-2022/5/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2022 Environment & Ecology question?▼
The correct answer is option (a): 1, 3 and 4 only. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Sustainable Agriculture & Forestry question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2022, GS Paper 1, as Question 48. It falls under Environment & Ecology > Sustainable Agriculture & Forestry.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Sustainable Agriculture & Forestry?▼
UPSC has asked 31 questions from Sustainable Agriculture & Forestry (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.