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Description
Pollution is the introduction of contaminants into an environment, of whatever predetermined or agreed upon proportions or frame of reference; these contaminants cause instability, disorder, harm or discomfort to the physical systems or living organisms therein.
Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy.

Description
Pollution is the introduction of contaminants into an environment, of whatever predetermined or agreed upon proportions or frame of reference; these contaminants cause instability, disorder, harm or discomfort to the physical systems or living organisms therein.
Pollution can take the form of chemical substances, or energy, such as noise, heat, or light energy.