There are seven continents and four oceans on the Earth, of which the oceans are much larger than the land, so some people say that the Earth is a "water planet".
The surface of the earth is separated by continental lands into vast areas of water that are connected to each other called "oceans", and the central part of the "oceans" is called "oceans" and the marginal part is called "seas".
Some lakes, such as the "Dead Sea", "Aral Sea", "Caspian Sea", "Erhai", etc., have "sea" in their names. "But it is a "lake" not a "sea"! There are some seas, such as the Sargasso Sea, which is the only sea in the world without a coast.
There is a distinction between the "inner sea" and the "marginal sea".
Inland sea refers to the sea that is deep inside the continent, except for the narrow waterway to connect with the outer sea or ocean, surrounded by continents, peninsulas, islands or archipelagos, such as the Mediterranean Sea, the Baltic Sea, the Caribbean Sea, etc. Among them, the Caribbean Sea is the world's largest inner sea, about 2735 kilometers long from east to west, 805 to 1287 kilometers wide from north to south, covering an area of about 2754,000 square kilometers, it is located between the North American continent and the South American continent, the north and east to the Greater and Lesser Antilles as the boundary.
Opposite to the inner sea is the marginal sea, which is located at the edge of the continent and the ocean, one side of which is bounded by the continent, and the other side is separated from the ocean by a peninsula, island or island arc, such as the Sea of Okhotsk, the Yellow Sea, the Bering Sea, etc.
Inner seas" such as the Mediterranean, Black Sea, Aegean Sea, Baltic Sea and Caribbean Sea, which are surrounded by several countries, are not owned by one country. There are also some internal seas in the world that are owned by one country, such as the Bohai Sea in China, the Seto Inland Sea in Japan, the Marmara Sea in Turkey, and the Sulu Sea in the Philippines.
The Seto Inland Sea is located between Honshu and Shikoku in Japan. It is 440 km long from east to west and 5 to 55 km wide from north to south, covering an area of about 19,500 square kilometers, with many harbors and islands.
The Sea of Marmara, located between the Bosphorus and the Dardanelles, covers an area of 11,350 square kilometers and is the smallest sea in the world. It is a waterway between the Black Sea and the Mediterranean Sea and is part of Turkey's internal sea.
The Bohai Sea, China's inland sea, has a coastline more than 3,800 kilometers long, 346 kilometers wide from east to west and 550 kilometers long from north to south, with an area of about 79,800 square kilometers.
* The internal waters of Xisha, the second largest internal sea in China, covers an area of about 31,000 square kilometers and is currently under the jurisdiction of Sansha City.
The following seas, which sound like the inner sea by name, are actually the open sea, and you can go there now if you want.
1, Sea of Japan.
The Sea of Japan is the largest marginal sea in the northwest Pacific Ocean, with its eastern boundary from the Kuril Islands, Hokkaido, Honshu and Kyushu of the Japanese archipelago in the north, the Russian Far East in the west, and the Korean Peninsula in the south.
The Sea of Japan is located in the mid-latitude zone, the entire sea is oval-shaped, about 2300 km long from north to south and 1300 km wide from east to west, covering 978,000 square kilometers, with an average depth of 1752 meters and a maximum depth of 3742 meters.
The Sea of Japan is rich in fishery resources, mainly sardines, herring, flounder, cod, beluga whales, sperm whales, blue whales, sea donkeys, crabs, etc.
The Sea of Japan is rich in mineral resources, mainly oil and natural gas.
Sea of Japan, not Japan's internal sea!
The Sea of Japan is surrounded by four countries, including Russia, North Korea, South Korea, and Japan.
As early as the Western Han Dynasty, the Western Han government set up four counties on the peninsula, namely, Lelang, Xuantu, Lintun and Zhenfan, and called the Sea of Japan "Lelang Sea" at that time.
2, Myanmar Sea.
The Burma Sea is located in the northeast of the Indian Ocean, south of Burma, east of the Andaman-Nicobar Islands and west of Singapore, with a length of 1,200 km from north to south and a width of 645 km from east to west, covering an area of about 798,000 square kilometers and a depth of 4,180 meters, and is an important waterway linking the Indian Ocean and the South China Sea.
Most of the Strait of Malacca falls within the waters of the Burma Sea.
The Burma Sea is surrounded by five countries, including India, Myanmar, Thailand, Malaysia and Indonesia.
The Burma Sea, not the internal sea of Myanmar.
There are many islands on the east and west sides of the Burma Sea, such as the Danlao Islands, the Andaman-Nicobar Islands, and the Coco Islands.
3, Bay of Bengal.
Located in the northern part of the Indian Ocean, the Bay of Bengal is the largest bay in the world, bordered by the Indian Peninsula in the west, the Andaman-Nicobar Islands in the east, Myanmar and Bangladesh in the north, and the Indian Ocean in the south along the line from Sri Lanka to Sumatra Island, with a width of about 1,600 km and an area of about 2.17 million square kilometers, with an average depth of 2,586 meters and a maximum depth of 5,258 meters.
The Bay of Bengal is rich in oil and gas resources.
The Bay of Bengal, not the internal waters of Bangladesh.
4, Gulf of Mexico.
The Gulf of Mexico is located in the southeast of the North American continent, connected to the Atlantic Ocean through the strait between the Florida Peninsula and the island of Cuba, and connected to the Caribbean Sea through the Yucatan Peninsula and Cuba between the Isthmus of Ugadon, with a length of about 1800 km from east to west and a width of about 1300 km from north to south, covering a total area of about 1.55 million square kilometers, with an average depth of 1512 meters and a maximum water depth of 5205 meters.
The Gulf of Mexico is tortuous and bayous, hot and rainy.
The Gulf of Mexico has manatees, fish, oil, and natural gas.
The Gulf Coast is home to three countries: the United States, Mexico and Cuba.
The Gulf of Mexico, not the internal waters of Mexico.
5, Philippine Sea.
The Philippine Sea is located between the first and second island chains in the western Pacific Ocean, with the Philippine Islands and our Taiwan Island to the west, the Ryukyu Islands to the northwest, the Kyushu and Shikoku Islands of Japan to the north, the Ogasawara Islands-Northern Mariana Islands to the east, the Eastern Caroline Islands-Palau Islands to the southeast, and the eastern islands of Indonesia to the south.
Most of the Philippine Sea is high seas and a small part is the territorial sea of the coastal countries, for example, the part of the Philippine Sea east of Taiwan Island is the territorial sea and continental shelf of China.
The Philippine Sea is about 3,450 km long from north to south and 2,000 km wide from east to west, covering an area of about 5.8 million square kilometers, with an average depth of about 4,100 meters and a maximum water depth of 10,479 meters.
There are four main countries along the Philippine Sea: China, Japan, Indonesia and the Philippines.
The Philippine Sea, not the internal waters of the Philippines.
6, Fiji Sea.
The Fiji Sea is an inter-island sea in the South Pacific Ocean, bounded by the Fiji Islands and the New Hebrides to the north, the Tonga Islands-Kermadec Islands to the east, and the North Cape of New Caledonia-Norfolk Island and New Zealand's North Island to the west. It is 2100 km long and 1270 km wide, covering an area of about 1.2 million square kilometers, with an average depth of 4000 meters and a maximum depth of 4743 meters.
The Fiji Sea is rainy and the coastal islands are among the richest in the world in nickel reserves, as well as gold, silver, copper, lead and zinc.
The Fiji Sea is surrounded by several countries such as Fiji, Tonga, France (New Caledonia) and New Zealand.
Fiji Sea, not Fiji's inland sea.
7, Gulf of Guinea.
The Gulf of Guinea is a bay in the Atlantic Ocean off the coast of West Africa, starting from Palmas Trial in Liberia in the west and ending at Cape Lopez in Gabon in the east, along the coast of 10 countries, including Liberia, Côte d'Ivoire, Ghana, Togo, Benin, Nigeria, Cameroon, Equatorial Guinea, Gabon, and Sao Tome and Principe.
The average depth of the Gulf of Guinea is about 3,000 meters, with a maximum water depth of 6,363 meters and a total area of about 1.53 million square kilometers.
There are pepper, cocoa, coffee, oil palm, natural rubber, gold, ivory, diamond, coral, uranium, iron ore, oil, copper, etc. along the coast of the Gulf of Guinea.
The Gulf of Guinea, not the internal waters of Equatorial Guinea.
8, Norwegian Sea.
The Norwegian Sea is located between the Norwegian archipelago of Svalbard, Iceland and Scandinavia, between the North Sea and the Greenland Sea.
The Norwegian Sea covers an area of approximately 1,383,000 square kilometers, with a flat depth of 1,749 meters and a maximum depth of 4,487 meters, and is bordered by three main countries: Norway, Iceland and Denmark (Greenland).
The Norwegian Sea is rich in fishery resources.
The Norwegian Sea, not the inner sea of Norway.
9, Gulf of Thailand.
Located between the South Central Peninsula and Malaysia, the Gulf of Thailand covers an area of 250,000 square kilometers and is bordered by four countries: Malaysia, Thailand, Cambodia and Vietnam.
The Gulf of Thailand is rich in fisheries, with coral and natural gas.
The Gulf of Thailand, not the inner sea of Thailand.
10, Persian Gulf.
The Persian Gulf is a gulf extending northwest of the Arabian Sea into the Asian continent, between the Iranian plateau and the Arabian Peninsula, 970 km long, 56-338 km wide, covering an area of 241,000 square kilometers, with an average depth of 40 meters and a maximum depth of 104 meters.
The Persian Gulf is hot, windy, murky water, low rainfall, rich in oil resources, rich in pearls, dolphins, porpoises, orcas and corals.
The Persian Gulf coast is home to eight countries, including Iran, Iraq, Kuwait, Saudi Arabia, Bahrain, Qatar, the UAE and Oman.
Persian Gulf, not the inner sea of Persia (Iran).
Similarly, the Indian Ocean is not India's ocean, the Irish Sea is not Ireland's inland sea, the Gulf of Finland is not Finland's inland sea, and the Gulf of Oman is not Oman's inland sea.
Do you know which is the inner sea of the United States? Where is it located?
Do you know if the Azov Sea is now an internal sea or an open sea?
