Ameliorate the Fertile Crescent

Directions: Grammatically correct the sentence below, in red. There is one colon ( : ).

Ancient Mesopotamia centered between two rivers the Tigris and Euphrates.   

Suggested Correction:
Ancient Mesopotamia centered between two rivers: the Tigris and Euphrates.  

On the blank map, fill in the following information about the Fertile Crescent that includes....
 Mediterranean Sea / Egypt / Nile River / Persian Gulf / Fertile Crescent