WHAT'S INSIDE: PHYSICAL FEATURES
- Deserts and Valleys
- Islands and Coastal Regions
- Lakes and Swamps
- Mountains and Ranges
- National Parks and Landmarks
- Rivers and Waterways
Missouri River, one of the largest rivers in North America and a chief tributary of the Mississippi.
America is a big ole place. Did you know that there are 50 states that constitute the U.S.? That question is about as easy as it's going to get on this quiz, so it’s time to see if your smarts go deeper.