Composting is the art of producing a rich, sweet smelling decomposed product rather than a wet, smelly, fly attracting, rotting mess.

They do so by secreting decomposing enzymes outside their bodies and absorbing the decomposed products through their cell walls.

Ammonium cyanide may be analyzed by heating the salt and trapping the decomposed products: hydrogen cyanide and ammonia in water at low temperatures.

• visual inspection and removal of decomposed product, extraneous matter, produce contaminated by fuels, (e.g., diesel, gasoline) and machine grease and oil.