A noun clause does not function as a modifier

The given statement is True.

Explanation:

It is true that a noun clause does not function as a modifier.

A modifier is an optional element in a clause structure which tends to change, clarify or limit a particular word in a sentence in order to add detail, emphasis or explanation.

Therefore, noun clauses can not function as modifiers, because unlike the adjectives and adverbs, they cannot stand alone on their own.