Its or it's which is a possessive pronoun?

Answer 1

The possessive pronoun is its.

Please note that in all circumstances the use of it's as a pronoun is incorrect. The only correct use of it's is as a contraction of "it is" ("It's a lovely day today") or "it has" ("It's been fun").

Answer 2

"Its" is the possessive pronoun, used to show possession or association with something. "It's" is a contraction for "it is" or "it has."