Context: The five Great Lakes are located in the north-central portion of the country, four of them forming part of the border with Canada, only Lake Michigan situated entirely within United States. The southeast United States contain subtropical forests and, near the gulf coast, mangrove wetlands, especially in Florida. West of the Appalachians lies the Mississippi River basin and two large eastern tributaries, the Ohio River and the Tennessee River. The Ohio and Tennessee Valleys and the Midwest consist largely of rolling hills and productive farmland, stretching south to the Gulf Coast.

Question: How many Great Lakes form a border with Canada?
Answer: four

Question: Which of the Great Lakes is entirely located in US territory?
Answer: Lake Michigan

Question: Which major river is located west of the Appalachian mountains?
Answer: Mississippi River

Question: What type of land makes up the Ohio and Tennessee valleys?
Answer: rolling hills and productive farmland

Question: Which section of the US contains subtropical forests and mangrove wetlands?
Answer: southeast United States

Question: The five Great Lakes formal border with what country?
Answer: Unanswerable

Question: Which great Lake is located entirely outside of US territory?
Answer: Unanswerable

Question: Which major river is located east of the Appalachian Mountains
Answer: Unanswerable

Question: What are the two large Western tributaries of the Mississippi River?
Answer: Unanswerable

Question: Which section of the US contains tropical forests and mangrove wetlands?
Answer: Unanswerable