Geography of the Earth
What is Eurasia?
How can we consider Eurasia to be two separate continents, when there is no appreciable boundary between the two regions?
Rivers Flowing North
Learn all about rivers that flow northward around the world, from your About.com Guide to Geography.
Learn about the 100th meridian, representing the boundary between the moist east and the arid west of the United States, from your About.com Guide to Geography.
Continents on Earth
The answer to the question - how many continents are on the earth? The answer from your About.com expert Guide to Geography.
Basic Earth Facts
A collection of basic facts about the planet earth, from your About.com Guide to Geography.
A list of the higest mountains in the world, from your About.com Guide to Geography.
Dozens of questions and answers about the earth; a vast collection of facts.
The Fifth Ocean
The International Hydrographic Organization has created a new fifth ocean - the Southern Ocean - surrounding Antarctica.
Astronomer Milutin Milankovitch developed the mathematical formulas upon which orbital variations are based. He hypothesized that when some parts of the cyclic variations are combined and occur at the same time, they are responsible for major changes to the earth's climate (even ice ages). Learn more about the Milankovitch Cycles in this article.
Six or Seven Continents?
Are Europe and Asia separate continents or are they one, Eurasia?
The complete chapter on with hundred of excellent entries about world geography topics from the "The New Dictionary of Cultural Literacy." Includes countries, oceans, physical features, cities, and more. Each entry tells why that particular place or thing is important to know.
The Equator, Hemispheres, Tropic of Cancer, and Tropic of Capricorn
An overview of the three most important lines of latitude on Earth - the equator, Tropic of Cancer, and Tropic of Capricorn, from the About.com Geography GuideSite.