Biodegradable Pollutants:

(i) These pollutants can be broken down into non-poisonous substances in nature by the action of microorganisms.

(ii) They get recycled thus, do not need any dumping sites.

(iii) These are generally obtained from living things.

(iv) They cause minimum environmental pollution.

Non-Biodegradable Pollutants:

(i) These pollutants cannot be broken down into non-poisonous substances by microorganisms.

(ii) They cannot be recycled thus, require dumping sites.

(iii) These are generally obtained from non-living things.

(iv) They cause environmental pollution.