How many continents and oceans are there in the world?

Seven continents: 1, Asia 2, Africa 3, Europe 4, South America 5, North America 6, Oceania 7, Antarctica.

Four oceans: 1, Pacific Ocean 2, Atlantic Ocean 3, Indian Ocean 4, Arctic Ocean.

1, seven continents:

Asia: Asia (etymology ancient Greek: α σ? α; Latin: Asia), once translated as "Asia Asia" and "Asia West Asia", is the largest and most populous of the seven continents. It accounts for 8.7% of the total earth area (or 29.4% of the total land area). The total population is about 4 billion, accounting for 60.5% of the world population (20 10). Most of Asia is located in the northern hemisphere and the eastern hemisphere. The dividing line between Asia and Africa is the Suez Canal. East of Suez Canal is Asia. The dividing line between Asia and Europe is the Ural Mountains, ural river, Caspian Sea, Caucasus Mountains, Turkish Strait and Black Sea. East of the Urals Mountains and south of the Great Caucasus Mountains, the Caspian Sea and the Black Sea are Asia. The mainland is located in the Bering Strait at Zhinev Point in the east (169 39 ′ 7 ″ w, 66 4 ′ 45 ″ n) and Tanjung Biya in the south (1031′ e,116 ′ n). Spanning a vast latitude and longitude, the time difference between east and west reaches 1 1- 13h. The west is connected with Europe, forming the largest land on earth-Eurasia.

Europe: The name of Europe comes from the character "Europa" in Greek mythology (Greek: ε υ υ? πη? ), located in the northwest of the old hemisphere, borders the Arctic Ocean in the north, the Atlantic Ocean in the west and the Mediterranean Sea and the Black Sea in the south. The mainland is east to the polar Ural Mountains (6610' east longitude and 67 46' north latitude), south to Cape Maroqi (5 36 minutes west longitude and 36 degrees north latitude), west to Cape Rocca (9 31'west longitude and 38 47' north latitude), and north to Nuo. Europe is the sixth largest continent in the world with a population density of 70 people \km? It is the third most populous continent in the world, second only to Asia and Africa. Europe is one of the most livable continents with high living standards, high environmental and human development indexes. Europe is bordered by Urals and ural river in the east, Caspian Sea, Caucasus Mountain and Black Sea in the southeast, North America in the west, Atlantic Ocean, Greenland Sea and Danish Strait in the north, Arctic Ocean in the north and Africa in the Mediterranean Sea in the south (the dividing line is the Strait of Gibraltar). The northernmost part of Europe is Noqin, the southernmost part is Marocchi, and the westernmost part is Rocca. Europe is the second smallest continent in the world, only bigger than Oceania. It is called Eurasia with Asia and Eurasia with Asia and Africa.

Africa: Africa is located in the southwest of Asia and the southwest of the Eastern Hemisphere, spanning the north and south of the equator. It is bordered by the Indian Ocean in the east, the Atlantic Ocean in the west, Europe across the Mediterranean Sea in the north, and Asia with the narrow Red Sea and Suez Canal in the northeast corner. Africa covers an area of 30.2 million square kilometers, 8,000 kilometers from north to south and 7,403 kilometers from east to west. It accounts for about 20.2% of the world's total land area and is the second largest continent in the world. The African continent reaches Cape Hafeng in the east (5124' E and 0/0 27' N), Cape Gullers in the south (20 02' E and 34 51'S) and Cape Verde in the west (0/7 W).

North America: North America is located in the northern part of the western hemisphere. Most of North America is a developed country with a very high human development index and economic level. It is the most open-minded and free continent. It faces the Atlantic Ocean in the east, the Pacific Ocean in the west and the Arctic Ocean in the north. It faces South America across the Panama Canal in the south, and Europe across the sea in the east, with a superior geographical position. The area is 24.228 million Km? (including nearby islands), accounting for about 16.2% of the world's total land area, is the third largest continent in the world. Common English, followed by Spanish, French, Dutch, Hindi and so on.

South America: South America is the abbreviation of South Asia and America. It is located in the southern part of the western hemisphere, bordering the Atlantic Ocean in the east and the Pacific Ocean in the west. The Panama Canal separates this land from North America and faces Antarctica across the sea to the south. The mainland reaches Blanco Point in the east (34 degrees 46 minutes west longitude and 7 degrees 09 minutes south latitude), Floyd Point in the south (7 1 0/8 minutes west longitude and 53 degrees 54 minutes south latitude), Parias Point in the west (8 1 20 minutes west longitude and 4 degrees south latitude) and Yine in the north. The total area is 654.38+079.7 thousand square miles (including nearby islands), accounting for 654.38+02% of the world's total land area, ranking fourth on seven continents in terms of area. By 20 1 1 year, the population of South America has reached 380 million, ranking fifth in the world. Brazil is the largest country in South America. The coastline of South America is 28,700 kilometers long. The coast is relatively flat, with fewer islands and bays.

Oceania: Oceania, the smallest continent, is located in the vast sea area north and south of the equator in the southwest of the Pacific Ocean. Between Asia and Antarctica, it faces the Indian Ocean in the west, the Pacific Ocean in the east, and far away from North and South America. In a narrow sense, Oceania refers to Polynesia in the east, Micronesia in the middle and Melanesia in the west. It has become a supply station for fresh water, fuel and food for ships and planes between Asia and Africa, and between North and South America. It is also the intersection of submarine cables and has an important traffic and strategic position. The total land area of Oceania is about 8.97 million square kilometers. Latitude and longitude: across the northern and southern hemispheres, from 47 south latitude to 30 north latitude, * * across 77 latitude; Spanning the eastern and western hemispheres, from east longitude 1 10 to west longitude 160, * * * spans 90 longitude. The distance from east to west is 1 10,000 kilometers, and the distance from north to south is more than 8,000 kilometers.

Antarctica: Antarctica, the continent around the South Pole. Located at the southern tip of the earth, it is surrounded by the Pacific Ocean, the Indian Ocean and the Atlantic Ocean, with the Bellingsgar Sea, the Ross Sea, the amundsen sea and the Weddell Sea at the edge. Antarctica consists of continents, continental ice and islands, with a total area of 6.5438+04245 million square kilometers, including 6.5438+02393 million square kilometers, 6.5438+0582 million square kilometers of continental ice and 76,000 square kilometers of islands. The whole territory is plateau, with an average elevation of 2350 meters, which is the continent with the highest average elevation in the world. The continent is almost completely covered by glaciers, accounting for more than 80% of the global modern ice sheet area. Continental glaciers extend from the center to the sea, forming a huge Ross ice barrier, and icebergs float around the sea. There are no settled residents in the whole continent, only researchers and whaling teams from all over the world. 19 1 1 65438 June+February, the Norwegian Amundsen expedition first reached the South Pole. 1959 In February, 12 countries signed the Antarctic Treaty, which came into force in 196 1 year. So far, countries have established more than 60 observation stations and more than 65,438+000 research bases in Antarctica. China Antarctic expedition team consists of Great Wall Station, Zhongshan Station, Kunlun Station and taishan station.

2. Four oceans:

Pacific Ocean: The Pacific Ocean is the largest ocean on the earth, accounting for about 46% of the earth's water surface and 32.5% of its total area. The span extends from the coast of the Antarctic continent to the Bering Strait, to Asia and Oceania in the west, to America in the east, spanning latitude 135, and the widest from north to south 15500 km. Sea area 18 1344000 square kilometers, excluding sea area 16624 1000 square kilometers.

Indian Ocean: The Indian Ocean is the third ocean in the world. Located between Asia, Oceania, Africa and Antarctica. Including the sea area of 74 1 1.8 million square kilometers, excluding the sea area of 73.427 million square kilometers, accounting for about 20% of the world's total ocean area. The sea volume is 284.608 million cubic kilometers, and the sea volume is 284.34 million cubic kilometers. The average depth of the Indian Ocean is second only to that of the Pacific Ocean, with an average depth of 3839.9 meters including the sea and 3872.4 meters excluding the sea. The deepest is 9074 meters. To its north are India, Pakistan and Iran; Arabia and Africa are in the west; Australia, Indonesia (Indonesia) and Malay Peninsula in the East; South is Antarctica; China is a British Indian Ocean territory.

Arctic Ocean: The Arctic Ocean, also known as the Arctic Ocean, is the smallest, shallowest and coldest ocean in the world. Roughly centered on the Arctic Circle, it is located at the northernmost part of the earth, surrounded by Eurasia and North America, and there is a narrow Bering Strait [1] communicating with the Pacific Ocean. Connected with the Atlantic Ocean through the Greenland Sea and many straits, it is the smallest ocean in the world, with an area of only 6,543,804,750 square kilometers, less than 654.38+00% of the Pacific Ocean. Its depth is1097m, and its deepest point is 5527m. Ancient Greece once called it "the ocean facing Ursa major". 1845, named by the Geographical Society of London, UK, translated into Arctic Ocean in Chinese. Mbth Arctic comes from Greek, which means the ocean facing Ursa major. ) 20 12 On August 25th, the sea ice area of the Arctic Ocean reached the smallest in the observation history.

Atlantic Ocean: The Atlantic Ocean is the second ocean in the world, accounting for nearly 20% of the earth's surface area, with an original area of 822 1.7 million square kilometers. After the establishment of the Antarctic Ocean, the area was adjusted to 76.762 million square kilometers, with an average depth of 3,627 meters. The deepest Puerto Rico trench is 92 19 meters deep. It is divided into the North Atlantic and the South Atlantic from the north and south of the equator. It is bordered by the Arctic Ocean in the north, the Antarctic Ocean at 66 degrees south latitude in the south, Europe and Africa in the east and America in the west. The Chinese name of the Atlantic Ocean comes from The Whole Map of Mountains, Seas and Lands written by Italian missionary Matteo Ricci in the 11th year of Wanli (1583).