Asia, Europe, Africa, America are the four major continents. The seven oceans are Oceania, Antarctica, Pacific Ocean, Atlantic Ocean, Indian Ocean, and Arctic Ocean. The continents can be ranked by area from largest to smallest as follows: Asia, Africa, North America, South America, Antarctica, Europe, and Oceania. The oceanic areas are ranked from largest to smallest as follows: Pacific Ocean, Atlantic Ocean, Indian Ocean, and Arctic Ocean.
The Antarctic Continent is the largest in area, followed by Asia, Africa, North America, South America, Europe, and Oceania. The smallest continent in terms of area is Europe.
The Pacific Ocean is the largest ocean, followed by the Atlantic Ocean, Indian Ocean, and Arctic Ocean. The Arctic Ocean is the smallest ocean and is completely located in the Northern Hemisphere.
Key continental boundaries include:
1. Asia and Europe are separated by the Ural Mountains, Ural River, Caucasus Mountains, and Turkish Straits.
2. Asia and Africa are separated by the Suez Canal.
3. Asia and North America are separated by the Bering Strait.
4. North America and South America are separated by the Panama Canal.
5. North America and Europe are separated by the Denmark Strait.
References:百度百科—七大洲, 百度百科—四大洋
