Prepositional phrase is the phrase that consist of time or location.
Based on the question above, the prepositional phrase that exist in the sentence is "Iowa and Tennessee"
hope this helps
The event of the stock market crash put the entire nation into "The Great Depression", which made the economy plummet. Trade world-wide was effected, and people were scared to put, and trust their money to be kept in banks. So as an alternative, they'd stuff their cash in their homes, wherever they could hide it.
