Question

What do think of when hear or read the word,POLLUTION?

Answer 1

Answer:the presence in or introduction into the environment of a substance which has harmful or poisonous effects.

Explanation:

Answer 2

Answer:

When you hear about pollution, you're most likely hearing about chemical emissions into air or water that come from industrial processing. ... Anything we think of as pure can be contaminated by pollution polluted, whether that's a lake or an idea.