Answer:
Noun clause is a clause which acts as subject, direct object, indirect object, object of preposition, predicate noun in a sentence.
1 . <u>Whenever I get home</u> will be soon enough.
the underlined noun clause acts as the <u>subject </u>of the sentence.
2 . Choose <u>whichever one you want</u>.
It acts as an indirect object of the sentence.
3 . Dad will pay <u>whoever finds his dog </u>a reward.
It acts as the direct object.
4 . My accomplishment, <u>that I have written one story</u>, doesn't make me an author.
It acts as an appositive. Appositive is a phrase which explains a noun, here my accomplishment.
5 . This is <u>how I make Swedish meatballs</u>.
It acts as a predicate noun.
6 . Don't judge a person by <u>what he wears.</u>
It acts as an object of preposition.