Spot the difference between biodegradable pollutants from non-degradable pollutants by using the given options.

Concept: A pollutant is any substance whose presence in the environment in any concentration can cause harm to the organisms that dwell in the environment. Pollutants are divided into two categories biodegradable and non-biodegradable pollutants.

The pollutants that persist for a very long period of time and do not decompose are called non-biodegradable pollutants and the pollutants that can get degraded by natural factors are called biodegradable pollutants.

Hence, the correct option is D.