The foul smell of urine of a healthy man having healthy food, when spilled on floor, is mainly due to the bacterial decomposition of
[amp_mcq option1=”urea into sulphur dioxide” option2=”sugar into carbon dioxide” option3=”lipids into methane” option4=”urea into ammonia” correct=”option4″]
This question was previously asked in
UPSC CDS-2 – 2017