Question

what is a pollution and what is a pollutant?

Answer 1

Pollution have many types like air pollution etc
if our atmosphere air get polluted by mixing with smoke or any harmful gases which is injurous for our health then it is also a type of pollution and unwanted gases or smoke is pollutant

Answer 2

pollution is an introduction of contaminants into natural environment that cause adverse change in the form of energy , such as noise ,heat and light
pollutants are the components of pollution