It can be an adverb or an adjective.
Pluto is not an adverb. Pluto is a proper noun being that it is the name of a moon of Saturn.
The words 'this' and 'that' are demonstrative pronouns, adjectives, and adverbs.The demonstrative pronouns take the place of nouns and indicate nearer or farther; for example:I like this better than that.The adjectives describe nouns as nearer or farther; for example:That car is more expensive than thiscar.The adverb modifies a verb or another adverb as more or less in degree; for example:I wasn't expecting this many responses.He makes that much money!
sometimes and quite are adverbs all the other word are not adverbs.
the heaviest person would have to sit nearer the middle
Arica is nearer.
0
Ireland is nearer the equator than Sweden.
China is nearer to the North Pole.
Nearer Than Heaven was created on 2003-04-21.
Dative ; near Comparative ; nearer Superlative ; nearest .
The Moon is much nearer than the nearest star.The Moon is much nearer than the nearest star.The Moon is much nearer than the nearest star.The Moon is much nearer than the nearest star.