A system of mountains in eastern North America, What states do the Appalachian Mountains cross?, What is the primary source of water for Maryland?, Why are the Great Lakes important?, What kind of water is in the Great Lakes? Fresh or Salt?, Name one of the Great Lakes?, What is the largest Great Lake?, What is the smallest Great Lake?, Which Great Lake is entirely in the United States?, What states does the Mississippi River run through?, What do you call a stream that flows into a larger stream or river or into a lake?, What is the major mountain range in the western United States?, What is the line that separates the water that runs towards the Pacific Ocean from the water that runs toward the Atlantic Ocean?, What is a piece of land shaped like a triangle that is formed when a river splits into smaller rivers before it flows into an ocean?, The name of the high plateau of grasslands that is located in parts of the United States and Canada?, What is a large area of ocean that is partly surrounded by land called?, The generally flat areas of the central part of the North American Continent, The lowest, hottest, and driest portion of the North American continent and located in the Mojave Desert, Hottest air temperature and surface temperature recorded on Earth, also the lowest elevation in North America; the mountains block the rain from falling.

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