The word 'his' isn't a noun, it's a pronoun, both a possessive pronoun and a possessive adjective.
The pronoun 'his' takes the place of a singular noun for a male.
A possessive pronoun is a word that takes the place of a noun for something that belongs to someone or something.
Example: John lives on this street, the house on the corner is his.
A possessive adjective is a word placed before a noun to describe that noun as belonging to someone or something.
Example: John lives on this street, hishouse is on the corner.
Neither! His is a pronoun! It's a pronoun because it's not naming a specific person.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Common
It is a proper noun, because it is the name of a specific thing.
proper
Proper noun
Pencil proper or common noun
it's a common noun. a proper noun would be Spider-Man.
Proper noun or common noun
The noun cassette is a common noun.
a common noun?
The answer is proper noun. Examples of common noun and proper noun are: Proper noun: Mary Collins Common noun: monkey
Camel is a common noun.