Which items are biodegradable out of a plastic bag aluminum foil saran wrap parchment paper and paper?

Biodegradable means that it will degrade or rot biologically i.e. in presence of water and air, it will eventually breakup in to simpler organic compounds such as CO2, CH4 etc. and mix with atmospheric air. Metals have different kind of reactions with atmospheric ingredients and form compounds. Most of plastics are not biodegradable. Most grades of papers are biodegradable.

First answer by Kodiakcathy. Last edit by Paperonweb. Contributor trust: 21 [recommend contributor]. Question popularity: 11 [recommend question]