Question

Nitrification means

• A. Conversion of nitrates into ammonia
• B. Conversion of ammonia into nitrates
• C. Conversion of nitrogen into salts nitrogen
• D. Conversion of nitrogen salts into free nitrogen

Answer 1

Answer: (B)

Conversion of ammonia into nitrates

Conversion of organic nitrogen of dead plants and animals into ammonia by soil microbes is called ammonification. Ammonia is further oxidized to produce nitrite and then to nitrate. This oxidation is known as nitrification. Thus option B is the correct answer.