Can anyone please explain this question to me:
The activity of decomposers returns sustrances to the atmosphere.
Which products of decomposition enter the atmosphere?
A) carbon dioxide and nitrogen
B) carbon dioxide and water
C) oxygen and nitrogen
D) oxygen and water
The answer should be B, but why? don't decomposers produce nitrogen? and how does it produce CO2 and H2O, it there like a chemical formula for this?