It is called urea
Urea
Humans impact the nitrogen cycle by burning fossil fuels, dumping waste in bodies of water, and using fertilizer.
The production of ammonia by bacteria during the decay of nitrogen-containing urea is called nitrogen cycle. The process of combining nitrogen gas with hydrogen to form ammonia is called nitrogen fixation.
sewerage
the answer is URETHRA
Pollution.
Urine and feces are the wastes that are expelled from the human body.
pollution
Readily soluble nitrogen and fertilizers from human waste and agriculture play a major role in the eutrophication of lakes.
pollution
their waste