The process under which nitrogen and hydrogen combine to form ammonia under high temperature and pressure conditions is called as _________
Abiological N2 fixation
Bnatural N2 fixation
Celectrical N2 fixation
Dindustrial N2 fixation
Abiological N2 fixation
Bnatural N2 fixation
Celectrical N2 fixation
Dindustrial N2 fixation