Northeast

landform, Coastal Plains, Appalachian Mountains, plateau, fall line, bay, harbor, ocean, needleleaf, broadleaf, soil, glacier, ecology, forests, photosynthesis, tourism, varied climate

aquaculture, bay, harbor, Industrial Revolution, tourism, overfishing, urban, rural, suburbs, commuter, industry, overcrowding, hydroelectric, population, transportation

American Revolution, Industrial Revolution, immigrants, megalopolis



Midwest



Southeast- South



West