What is Pollution

       

Definition of pollution for English Language Learners
: the action or process of making land, water, air, etc., dirty and not safe or suitable to use
: substances that make land, water, air, etc., dirty and not safe or suitable to use

Pollution is the introduction of contaminants into the natural environment that cause adverse change.^[1] Pollution can take the form of chemical substances or energy, such as noise, heat or light.Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution.

Earth is now sick;