Identifying leguminous and nitrogen-fixing plants
Question
Which of the following are nitrogen-fixing plants? Select the correct answer using the code given below:
- 1.
Alfalfa
- 2.
Amaranth
- 3.
Chickpea
- 4.
Clover
- 5.
Purslane (Kulfa)
- 6.
Spinach
Options
1, 3 and 4 only
1, 3, 5 and 6 only
2, 4, 5 and 6 only
1, 2, 4, 5 and 6
Explanation
Alfalfa, Chickpea, and Clover are leguminous plants (Fabaceae family) that host Rhizobium bacteria in their root nodules to fix atmospheric nitrogen. Amaranth, Purslane, and Spinach are non-leguminous leafy greens that do not fix nitrogen; they rapidly deplete it from the soil.
Answer: (a).
Question details
Year
2022
Paper
GS Paper 1
Question
Q48
Subject
Environment
Sub-topic
Botany & Flora
Type
Statement-based
Difficulty
Hard
Nature
Static
Source hint
NCERT Biology Cl.11 Ch.12
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