The vast ocean, from blue to green, is beautiful and spectacular. Ocean, ocean. People always say this, but many people don't know that the sea and the ocean are not exactly the same thing, they are different from each other. So, how are they different, and how do they relate?
The ocean is the central part of the ocean and the main body of the ocean. The total area of the world's oceans accounts for approximately 89% of the ocean area. The water depth of the ocean is generally more than 3,000 meters, and the deepest can reach more than 10,000 meters. The ocean is far away from the land and is not affected by the land. Its hydrology and salinity vary little. Each ocean has its own unique system of currents and tides. The water color of the ocean is blue, very transparent, and there are very few impurities in the water. There are 4 oceans in the world, namely the Pacific Ocean, the Indian Ocean, the Atlantic Ocean, and the Arctic Ocean.
The Bohai Sea is China’s inland sea
The East China Sea is one of the marginal seas of the Pacific Ocean
The sea is at the edge of the ocean and is a subsidiary part of the ocean. The area of the sea accounts for about 11% of the ocean. The water depth of the sea is relatively shallow, with the average depth ranging from a few meters to two or three thousand meters. The sea is close to the continent and is affected by the continent, rivers, climate and seasons. The temperature, salinity, color and transparency of the sea water are all affected by the land and have obvious changes. In summer, the sea water warms and in winter the water temperature drops; in some sea areas, the sea water even freezes. Where large rivers enter the sea, or during rainy seasons, the sea water becomes fresher. Due to the influence of the land, rivers carry sediment into the sea, making the nearshore seawater turbid and unclear, and the transparency of the seawater is poor. The sea does not have its own independent tides and currents. The sea can be divided into marginal sea, inland sea and Mediterranean Sea. The marginal sea is both the edge of the ocean and the frontier of the continent. This type of sea is widely connected with the ocean and is generally separated from the ocean by a group of islands. my country's East China Sea and South China Sea are the marginal seas of the Pacific Ocean. Inland seas are seas located inside continents, such as the Baltic Sea in Europe. The Mediterranean Sea is a sea between several continents, and the water depth is generally deeper than that of inland seas. There are nearly 50 major seas in the world. The Pacific Ocean has the most, followed by the Atlantic Ocean, and the Indian Ocean and the Arctic Ocean are about the same.
The Mediterranean Sea surrounded by the continents of Europe, Asia and Africa
animal tags：
you may also like
Swordfish is also called swordfish. It is named because its upper jaw is flat at the top and bottom, thick in the middle and thin on the sides, like a sharp sword. But because of its fast speed, it is like an arrow leaving the string, so it is called swordfish. Animals living in water have di...
Between northern Africa and the Arabian Peninsula, there is a bright red sea. This is the Red Sea. It is a subsidiary sea of the Indian Ocean. The Red Sea is like a crocodile with its mouth wide open, lying diagonally from northeast to southeast. It is about 2,000 kilometers long, with a maxi...
Marine animals that are warm-blooded, viviparous, and nurse their young with breast milk are called marine mammals. They can also be called wild beasts in the ocean. Whales are mammals in the ocean. There are many types of whales, ranging from large to small. The largest...
Sharks are often considered a difficult species to farm in captivity, primarily due to the challenges of several key factors:Space requirements: Most shark species require large swimming spaces to maintain their natural habits and activity levels. Providing a body of water large enough to meet these...
The seafloor is part of the earth's surface. The seabed is not as flat as we imagine. If the sea really turns into a mulberry field, we will find that the appearance of the underwater world is very similar to the land we live on: majestic mountains, deep trenches and canyons, and vast plains...
In the southeastern sea of the Yangtze River Estuary, there is the largest island group in my country, which is the Zhoushan Islands. Geographic location map of Zhoushan Islands The Zhoushan Archipelago is dotted with numerous islands and reefs, w...
Mollusks in the ocean, commonly known as seashells. There are not only many types of seashells, but they are also widely distributed. They can be found in three sea areas: cold, warm and hot, and at three water depths: upper, middle and lower. Although seashells have different shapes, colors,...
Sea lions roar like a lion, and some species have a mane on their neck, which looks like a lion, hence their name. Its four legs are like fins and are very suitable for swimming in the water. The sea lion's hind legs can bend forward, allowing it to walk flexibly on land and squat on the grou...
Email: jsset#163.com (change # to @) Please indicate your purpose of visit! Guangdong ICP No. 2022053326 XML| map| Chinese
