Agriculture in India
Quick practice
Question 1 of 5
Which among the following bacterias, are the aerobic nitrogen fixers :
1. Closteridium
2. Chlorobium
3. Azatobacter
4. Azomonas
Select the correct option :
A
3 & 4
B
1, 2 & 3
C
1,2,3& 4
D
1 & 2
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