I noticed that many people on this wiki confuse it's with its. I'll try to teach you the difference.
It's is the contractive form of it is. Example: The cat is brown. No, it's red.
Its is the possessive adjective/pronoun of it. Example: The imp is fast. Its beard grows.
So don't confuse these two things! Don't write sentences like The cat is brown. It's tail is blue. or The cat is brown. Its a nice cat..Let's try to have a better wiki together!!! :)