pollution
Pollution Pollution is the introduction of harmful substances or products into the environment. ... Pollution not only damages the environment, but damages us also. ... Automobiles are undeniable the greatest source of pollution. The noise pollution created by cars is immense. ... The last great source of pollution lays in the businesses. ... Pollution like any other problem can be solved, but this is a long process. ... This will cut down on pollution made by cars each year, not to mention your gas bill.