Yes
Yes. America is always capitalized -- even if it is being used as an adjective.
An adjective form is "spectacular." The word is also used as a noun for presentations that are supposed to be a spectacle.
North America was the supposed 'birth place' of the now widely used totem pole.
No, "animal" is not a proper adjective; it is a common noun. Proper adjectives are derived from proper nouns and are capitalized, such as "American" from "America" or "French" from "France." In contrast, "animal" can be used as a common adjective when describing something related to animals, but it does not meet the criteria of a proper adjective.
No, it is not an adverb. American is the proper adjective for the noun America, but is often used as a noun to mean a person from the US.
Resolute can only be used as an adjective.
it can used as a noun or as an adjective
whole can be used as an adjective
It can be used as an adjective or as a noun.
It can be used as an adjective or a noun.
Yes, it can be used as an adjective.
"American" is most often an adjective, but can also be used as a noun, meaning resident and/or citizen of America.