Nitrifying bacteria are able to
A
Convert atmospheric nitrogen into soluble forms
B
Convert ammonia to nitrate
Correct option is B. Convert ammonia to nitrate
Nitrification is an important process in nitrogen cycle in nature, which is brought about by nitrifying bacteria. In warm moist soils having a temperature of $$30-35^0$$C and neutral pH, ammonia gets oxidized to nitrite ($$NO_2^-$$) and then nitrate ($$NO_3^-$$) by the process of nitrification.
Nitrifying bacteria like Nitrosomonas convert ammonia to nitrite and another bacterium, called as Nitrobacter converts nitrite to nitrate.