How are subordinate clause is an prepositional phrases different?

A subordinate clause is a group of Words that contains a subject and a verb but does not express a complete thought and cannot stand alone as a sentence. On the other hand, a prepositional phrase is a group of Words that begins with a preposition and ends with a noun or pronoun. While a subordinate clause functions as part of a sentence, adding information or providing context, a prepositional phrase primarily acts as an adverb or adjective to modify a noun or verb.