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- What Is the 25th Parallel and Where Is It Located?Earth & Space
- Why Is It Called the Tropic of Cancer?Earth & Space
- What Is the 45th Parallel and Where Is It?Earth & Space
- How Many Gallons of Water Are in Lake Superior?Earth & Space
- What Are the Hemispheres of Earth and How Are They Divided?Earth & Space
- How Deep Is the Titanic and What Is the Pressure?Earth & Space
- Who Discovered the Water Cycle? A Look at Its HistoryEarth & Space
- How Wide Is the Mississippi at Its Widest Point?Earth & Space
- What Tectonic Plate Is Japan On?Earth & Space
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- Do Compasses Always Point North? Not ExactlyPhysics
- What Is the Longest Glacier in the World?Earth & Space
- How Many Straits Are in the World? The Real AnswerEarth & Space
- Where Is the Suez Canal? Location, Map & FactsEarth & Space
- What Connects the Red Sea to the Mediterranean Sea?Earth & Space
- What Sea Is Croatia On? Adriatic Coast & CitiesEarth & Space
- Where Is the 36°30′ Line? Its Location and HistoryEarth & Space
- What Ocean Lies South of India and Why It MattersEarth & Space
- What Planting Zone Is Cape Cod?Gardening