state gov Bihar SSC (BSSC) Inter Level Mock Test 2024 - 25 General Science Biology Biology in Everyday life
Which process does not exist in nitrogen cycle ?
1
O2 + N2 \(\xrightarrow {h\nu}\) nitric oxide
2
oxide of nitrogen \(\xrightarrow {H_2O}\) nitric acid
3
nitrates \(\rm \xrightarrow {Rhizobium}\) nitrogen
4
ammonia \(\rm \xrightarrow{bacteria}\) nitrogen