Pronouns replace nouns, and possessive pronouns show ownership or possession.
Here's why:
* Noun: A noun is a word that names a person, place, thing, or idea.
* Pronoun: A pronoun is a word that replaces a noun.
* Possessive pronoun: A possessive pronoun shows ownership or possession.
In the sentence "Your car is red," "your" replaces the noun "your car" and shows ownership.