There are seven continents in the world: Asia, Africa, Antarctica, South America, North America, Europe and Oceania, and four oceans: Pacific Ocean, Atlantic Ocean, Indian Ocean and Arctic Ocean.

The full name of Europe is "Europa", which literally translates as "the place where the sun sets in the west". Asia is the abbreviation of "Asia Asia", which means "the place of sunrise in the East". North America and South America are collectively called America, and America is the abbreviation of "America".

Africa is short for Africa. ? Oceania means "land in the ocean". Antarctica is named because this continent is located around the southernmost pole of the earth.

The ocean area of the four oceans is 36 1 10,000 square kilometers, of which the Pacific Ocean accounts for 49.8%, the Atlantic Ocean for 26%, the Indian Ocean for 20% and the Arctic Ocean for 4.2%.

boundary

Eurasian border

Ural Mountain-ural river-Caspian Sea-Great Caucasus Mountain-Black Sea-Turkish Strait

Ural-ural river-Great Caucasus-Turkish Strait

Among them, Mount Ural-ural river-Da Gao Gasol is a common answer.

Sub-north American dividing line

Bering strait

The dividing line between North and South America

Panama Canal (Panama Isthmus) (some versions are about China and the United States)

Panama Canal-Natural Boundary Line

Non-European dividing line

Straits of Gibraltar