it can be used as an adverb as in asking the question Why, for what cause or reason. It is used as a noun when describing the precise reasons for a certain action or thing
adverb
what part of speech is work
i want to know what part of speech is camping
what part of speech is beneath
what part of speech is eleven
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
what part of speech is work
adverb
The word speech is a noun.
Adjective
Yes, conjunction is a part of speech.
What part of speech is thaw
i want to know what part of speech is camping
what part of speech is beneath
The part of speech for "archaeologist" is a noun.