Pollution refers to the introduction into or the presence in the environment of a thing or a substance, which has poisonous or harmful influences.
The pollution is affecting our surrounding or environment in a drastic way. The pollution from cars, oil spills and littering can exhibit a major influence on the environment.
It can harm the crops, which affects the food we eat, the waterways, and the air we breathe in due to overriding of greenhouse gases. All this simultaneously also exhibit a certain amount of influence on the animals as well.