What physical feature separate's the Rocky Mountains and Appalachian?

How is a Swiss cheese plant adapted to living in the rain forest? How was lake Allatoona created? What is the highest peak of the Rocky Mountain Chain? How much would it cost to repair damage if Yellowstone were to erupt? What are the 7 eonder in the world? How many types work permits? How has the Zambezi river's course changed over time? When did Mississippi start a swamp drainage program on the delta? What does a coral reaf do to animals? What is the troubled Tiber chafing with her shores? Why cant you dive into the Dead Sea? What percentage of the world's lakes are in Canada? What factors led to the emergence of the Great Lakes-St.Lawrence provinces as Canada's heartland? The inland area at the base of the appalachians was called? Is April a good time to go to Universal Studios Florida? When is it the warmest in the Mediterranean sea? What are the changes in the desert? Where is the Earth Science Museum in Phoenix Arizona located? How much of Connecticut is forest? Why do ships need to keep away from dangerous rocks by the lighthouse?