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Atmospheric nitrogen can undergo nitrogen fixation by
1. cynabacteria
2. lightning
3. ultraviolet rays
Select the correct answer using the codes given below.
  • a)
    1 only
  • b)
    1 and 2 only
  • c)
    1 and 3 only
  • d)
    1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Atmospheric nitrogen can undergo nitrogen fixation by1. cynabacteria2....
Nitrogen fixation (NF) is a process in which nitrogen (N2) in the atmosphere is converted into ammonium (NH4+). Nitrogen fixation occurs naturally in the air by means of lightning. Biological nitrogen fixation is carried by cyanobacteria (e.g. the highly significant Trichodesmium and Cyanothece), green sulfur bacteria, Azotobacteraceae, rhizobia and Frankia. NF also takes place in presence of UV rays.
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Atmospheric nitrogen can undergo nitrogen fixation by1. cynabacteria2. lightning3. ultraviolet raysSelect the correct answer using the codes given below.a)1 onlyb)1 and 2 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
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