Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Biology Biology in Everyday life
Which one of the following is responsible for denitrification ?
1
Rhizobium and Azotobacter
2
hizobium and Nostoc
3
Pseudomonas and Thiobacillus
4
More than one of the above
5
None of the above