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RRB Group D Model Paper 4 with solutions
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© examsnet.com
Question : 63
Total: 100
Which of the following have their own nitrogen–fixing mechanism?
Mustard, sunflower, sesame
Grams, peas, moong
Wheat, rice, maize
Almonds, walnuts, cashewnuts
Validate
Solution:
(2) Grams, peas and moong are all leguminous plants that have root nodules. These nodules have nitrogen–fixing bacteria (Rhizobium) that fix gaseous nitrogen of the air into nitrates. None of the other options belongs to this category.
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