In the MISC@1 process , NUMBER@1 is converted together with hydrogen gas -LRB- NUMBER@2 -RRB- into ammonia -LRB- NH3 -RRB- which is used to make fertilizer and explosives .

These bacteria have an enzyme that combines NUMBER@1 with hydrogen gas -LRB- NUMBER@2 -RRB- to make ammonia -LRB- NH3 -RRB- .
