What is possessive pronoun adjective?

The possessive pronouns and possessive adjectives are pronouns used to indicate ownership, possession, origin, or purpose of a noun.

A possessive pronoun takes the place of a noun that belongs to someone or something.
They are: mine, yours, his, hers, its, ours, theirs.
Example: The house with the green door is his.

A possessive adjective is placed before a noun to show that the noun belongs to someone or something.
They are: my, your, his, her, our their, its.
example: His house has the green door.