Can you name some African Kingdoms and facts about them

  The Land of Punt. Papyrus showing preparations for an Egyptian journey to Punt.

Though often overshadowed by its Egyptian neighbors to the north, the Kingdom of Kush stood as a regional power in Africa for over a thousand years.

Best known as ancient Rome’s rival in the Punic Wars, Carthage was a North African commercial hub that flourished for over 500 years.

Explanation:

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.