Only 9% of Americans Can Ace This World Geography Quiz. Can You?

They are the Atlantic, Pacific, Indian, Southern and Arctic. Of course, the boundaries are somewhat fluid: Earth's surface is more water than land.

The Pacific is fairly shallow in places, too. Consider that all its island chains -- Polynesia and Micronesia -- are mountain ranges on the ocean floor that rise to break the surface.

Siberia is a geographic region, not a political entity. In ancient times, it was very sparsely populated, probably due to the harsh climate. (It's not exactly crowded today).

This is, of course, the Great Barrier Reef. It lies off the coast of Queensland.

Western peoples tend to know little about Mongolia. However, it has a fascinating history of military conquest, producing leaders like Tamerlane and Genghis Khan.

Lake Baikal is located in Russia. It holds 5,670 cubic miles of water. That's *miles*, not feet!

Lake Baikal was created by a rift valley and is over a mile deep. Its narrow depth is part of the reason it is only the world's seventh-largest lake by surface area.

Iceland is hard to reach, being in the middle of the North Atlantic, and its capital is hard to pronounce. You're not making it easy for us, Icelanders!

The Marianas Trench was named for the Marianas Islands, themselves named for a queen. In the Pacific near Guam, it is about 36,000 feet deep -- comparable to the altitude at which many planes fly above sea level.

The Himalaya range is in Asia, including India, Nepal, Bhutan, Pakistan and China. Ecuador is in South America.

Everest, in Nepal, is about 29,000 feet tall. The name "Everest" is for an English explorer; it's been called by its Nepali and Tibetan names much longer.

This lake, shared by Bolivia and Peru, also holds the distinction of being the world's highest navigable lake. Its elevation is about 12,000 feet above sea level.

Guanajuato is home to the city of San Miguel de Allende. The city is a World Heritage Site, with beautiful architecture from the 17th and 18th centuries.

The Barbary Coast was adopted from the name of a North African people, the Berbers. The coast of Morocco and Algeria makes up much of the Barbary Coast, a name applied by European sailors.

The Falklands lie off the coast of Argentina. The UK fought a brief and decisive war to retain them in 1982.

"Falkland" was a British secretary of the Navy who sponsored the islands' exploration. However, "Malvinas" isn't exactly an indigenous name: It's derived from the name "Iles Malouines," after a French port, St. Malo, at which a French exploration originated.

Sicily is a politically independent region of Italy, though not part of its mainland. That triangular land mass that the "boot" of Italy appears to be kicking? That's Sicily.

Patagonia is a general region, like the "Great Plains" in the United States. It is the southern part of the South American continent, within the political boundaries of Chile and Argentina.

You're more likely to have heard of the Yangtze. But China's Yellow River is the sixth-longest in the world overall -- not too shabby!

Easter Island is a considerable distance from Chile, deep in the southern Pacific Ocean. It is nonetheless a Chilean holding, and its Spanish name is "Isla de Pascua."

Goa is a state on India's western coast. Tourists flock to it for its beaches.

The Arabian Sea is part of the northern Indian Ocean. It is bounded mainly by Saudi Arabia to the west and India to the east.

Bolivia's Altiplano ("high plain") is partly shared by Peru and Chile. It is the world's highest plains region outside Tibet.

The Azores are in the Atlantic Ocean, west of Portugal. They are known for being the location where the Mary Celeste was found unmanned, but completely undamaged. What became of her crew has never been discovered.

As the second word of its name suggests, Scotland was the namesake. "Nova Scotia" is "New Scotland" in Latin.

Java is the most populated island of the nation of Indonesia. And, of course, a fantastic variety of coffee.

The Victoria Falls have a name that means "smoke that thunders" in the Tonga language. But British explorer David Livingstone gave them the English name "Victoria," after the queen.

If you said "none of these," you might have been thinking of Australia. But Australia is considered a continent, not an island. Were it possible to be both, Africa would take top honors.

"Administrates" is a nicer way to say "controls politically." You'll also see "protectorate" used for some territories.

Icelanders answer only to Icelanders! Though they're awfully dependent on tourism, so if everybody stopped visiting, they'd be in a hard place.

Singapore is essentially a city, but an independent state as well. It is the crossroads of Southeast Asia, and home to some seriously great food.

Baffin Island is part of northern Canada. It's one of the world's largest islands, though not the largest.

Nunavut used to be part of Canada's Northwest Territories. It is now a separate political entity, thanks to a 1991 act of Parliament.

Carthage was a North African city famous for its enmity with Rome, and its military leader Hannibal. Nowadays, you'll hear people say "Carthago delenda est" to indicate a political or business rival needs to be thoroughly defeated. (It's Latin for "Carthage must be destroyed.")

Honshu is the large island which is home to Tokyo and Kyoto. Altogether, though, the Japanese archipelago makes up more than 5,000 islands.