UPSC Previous Year Question | Prelims GS | 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:

  1. 1, 3 and 4 only
  2. 1, 3, 5 and 6 only
  3. 2, 4, 5 and 6 only
  4. 1, 2, 4, 5 and 6

Answer

Correct Answer

1, 3 and 4 only

Explanation

Alfalfa, chickpea, and clover are all legumes that host nitrogen-fixing bacteria in root nodules. Amaranth, purslane and spinach are not nitrogen-fixing plants.

Topics: biodiversity, environment, species and habitats, wildlife conservation