PCBs are considered to be persistant environmental pollutants and thus are not very biodegradable.
Biodegradable means that by microorganisms something must turn back into naturally occurring minerals, usually co2, ch4, dirt(humus) water.
. that cannot be broken down in the environment by natural process
Abs is not biodegradable.
Biodegradable is when some thing you own, eg, a carrot can rot or fade away and turn into the product they were made out of in the first place, like turning into dirt again. The item which is...
A fruit peel is biodegradable. All plant and animal tissues will decompose eventually.
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