Q.

Match List I with List II and choose the correct match.

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a

A - iii, B - ii, C - i, D - iv

b

A - iii, B - i, C - iv, D - ii

c

A - ii, B - iii, C - i, D - iv

d

A - iii, B - iv, C - ii, D - i

answer is D.

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Detailed Solution

Azotobacter and Beijerinckia are aerobic free-living nitrogen fixers. Rhodospirillum is anaerobic free-living photosynthetic nitrogen fixer. Rhizobium is symbiotic nitrogen fixer in legumes. Frankia symbiotic nitrogen fixer in the root nodules of non-legumes like Alnus.
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Match List I with List II and choose the correct match.