plastic, copper, iron,
Material that's nonliving (excluding dead organic matter) is non-biodegradable. Plastic, metal, styrofoam, and corrugated cardboard are non-biodegradable, while a dead tree, animal waste, and skin...
They don't deteriorate with age
BIODEGRADABLE a carrot a feather paper leather bones cotton wood banana peels poo wikipediaNON-BIODEGRADABLE styrofoam chips bags plastic bottles regular shopping bags detergents motor oil paint...
. that cannot be broken down in the environment by natural process