From Envirowiki
Organic material generally refers to dead matter that has recently come from a
living organism, such as faeces, leaves or a carcass. Over time, organic matter will rot (or
compost), either
aerobically, or
anaerobically, to become
hummus. Anaerobically decomposing plant matter in water becomes
peat. It may also be covered in earth (from a
flood, or
landslide, and be compressed to become, over a long period, some kind of
fossil fuel, such as
oil,
coal, or
gas (depending on the type of organic matter).
