The answer is potatoes and maize
The Answer is B.
The U.S. expanded its naval power by seeking ports throughout the Pacific.
Answer: D) Wealth changed the amount of power held by ancient civilizations
Do you want vague details? Westward expansion was when the colonists began pushing West and migrating past the mountains further into Northern America. As this happened relationships with the Native Americans intensified as colonists began forcing more and more Native Americans off of their lands.
Hope this helps! (:
It's called the manhattan project
