Here's why:
* Prepositional phrases start with a preposition (like "of", "on", "in", "with", etc.) and are followed by a noun or pronoun (the object of the preposition).
* The sentence "The settlers rationed their supplies dried meat vegetables and flour" is a simple sentence with a verb ("rationed") and its direct object ("supplies"). The words "dried meat," "vegetables," and "flour" are simply modifiers, describing the type of supplies.
Let me know if you'd like to see an example of a sentence with a prepositional phrase!