Urin contains only

A. 0.5% N

B. 0.2% N

C. 1.5% N

D. 1.0% N

Answer: Option D

Solution(By Examveda Team)

Urine contains only 1.0% N.
About 91–96% of urine consists of water. The remainder can be broadly characterized into inorganic salts, urea, organic compounds, and organic ammonium salts.
Cellular metabolism generates many by-products that are rich in nitrogen and must be cleared from the bloodstream, such as urea, uric acid, and creatinine. Urine can also be used safely as a source of nitrogen in carbon-rich compost.