Quick practice
Question 1 of 5
Nitrogen fixation on the earth is facilitated by various processes like –
- By microorganisms
- Artificially using industrial processes
- By Atmospheric processes like thunder and lighting
Which of the statements given above is/are correct?
A
1 and 3 only
B
1, 2 and 3
C
1 and 2 only
D
2 and 3 only
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