It's roads to connect different parts of their empire. Just finished the test :)
grapefruit cannot be contaminated by clean water such as tap water. grape fruit seeds also contains a lot of material that can kill bacteria
Answer:
The Mississippi River is the main river transportation system in the nation, and back in the Civil War, this river was even more important for transportation.
Explanation:
The North could now transport troops and supplies deep into the center of the Confederacy.
built the Great Pyramids
developed advanced irrigation
expanded the empire’s territory
improved trade and transportation
