Altai Mountains vs Asia

Altai Mountains and Asia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Altai Mountains	Yes	No	No	No
Asia	Yes	No	No	No

Altai Mountains (noun)	Asia (noun)
a mountain range in central Asia that extends a thousand miles from Kazakhstan eastward into western Mongolia and northern China	the nations of the Asian continent collectively
	the largest continent with 60% of the earth's population; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations