environment vs habitat

environment and habitat both are nouns.

Word	Noun	Adjective	Verb	Adverb
environment	Yes	No	No	No
habitat	Yes	No	No	No

As nouns, habitat is a hyponym of environment; that is, habitat is a word with a more specific, narrower meaning than environment:

environment: the area in which something exists or lives
habitat: the type of environment in which an organism or group normally lives or occurs

Other hyponyms of environment include ambiance, ambience, medium, scene, setting, element, home ground, melting pot, parts.

environment (noun)	habitat (noun)
the area in which something exists or lives	the type of environment in which an organism or group normally lives or occurs
the totality of surrounding conditions