One effect that plentiful harvests had on ancient civilizations of the mainland's river valleys was to help have larger populations and the need to have materials to survive.
Catholic and christianity
Answer:
Both cities are ports. located in Eastern part of the United States.
Explanation:
As we can see on the map, Boston is located on the Pacific Ocean. It is one of the most important ports on the Atlantic, even since the colonial period. On the other side, New Orleans, which lies much southern is a part located on the Mississippi River, near the Mexican Gulf.
They refract due to the different densitys outer core effects s waves because they cannot pass through liquid
