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What do you know about the ocean? The shorter the better.
The endless wingspan of the sea contains huge energy all the way to the junction of Qiandan River. An iron cage filled with 12 tons of stones was gathered nearby for dinner. But it disappeared after a wave of tsunami.
9 Browse 39992020-04-27
What do you know about the sea? Give two examples.
1. Seawater is salty because there is about 3.5% salt in seawater. Most of them are sodium chloride, and a small amount of magnesium chloride, potassium sulfate, calcium carbonate, etc. (Composition of seawater) 2. The ocean is a cornucopia of mineral resources. Oil and gas fields, rare manganese nodules, submarine hydrothermal deposits, combustible ice. The ocean is rich in mineral resources.
Browse 279 120 18-04-30.
What are the poems about the sea?
There is the following poem about the sea: "On the river, water is as precious as the sea." It is not surprising that Du Fu liked human nature in Tang Dynasty. People are getting older and older, and writing poems is perfunctory. With flowers and birds in spring, there is no deep sadness in the past. I have a new clothes and a stockade by the river. I can fish leisurely. I have prepared a wooden raft to replace the boat in the river. I hope that Tao Yuanming, Xie Lingyun and other poetry masters will definitely chat with each other and have a tea party. "Looking at the night view of the sea tower, the wind and rain enter the building oblique" Song Dynasty: Su Shi's wind and rain enter the building oblique, which is spectacular and should be praised. When the rain ebbs and flows, the sea is blue, and when the lightning flashes and thunders, the purple snake is chosen. "Langtaosha White Sea Lotus" Tang Dynasty: Bai Juyi White Sea Lotus, flat sand boundless. I couldn't find it before, and the East China Sea became a mulberry field. "Pomegranate Ode to Neighbor's East Window" Tang Dynasty: Under Li Bai's daughter's east window, pomegranate is rare in the world. Coral reflects green water, which is not enough to compare with Guanghua. Incense rises with the wind, and good birds return at dusk. I would like to raise my skirt low for the southeast branch. No climbing leads to gold leaves. The Ballad of the Sea People in the Tang Dynasty: Homeless people live in the sea, and the pearl-picking service is like a year-old fu. Bad waves cross the Tianshan Mountains, blocking roads, and Weiyang Palace often has Man Ku.
2 1 Browse 1579320 18-06-28
What else do you know about the sea?
The sea and the coast have more meanings? More pictures of the sea (42 pictures) (English: Seyt and ockjuukus；; Ocean; French: Mer) the sea is the ocean. In fact, there are some differences between the sea and the ocean. The difference between ocean and ocean: the vast ocean, from blue to green, is beautiful and spectacular. The ocean at the edge of the ocean is an accessory part of the ocean. The area of the sea accounts for about 1 1% of the ocean, and the water depth of the sea is relatively shallow, with an average depth of several meters to 43 kilometers. The sea is close to the mainland and is influenced by the mainland, rivers, climate and seasons. The temperature, salinity, color and transparency of seawater are all affected by land and have obvious changes. Chinese names: Sea mbth: Seyt and ockjuukus；; Ocean; Sea? French name: Mer alias: ocean sharing to ... Introduction "Ocean is the source of life", people always say this, but many people don't know it. The sea and the ocean are not exactly the same thing, they are different from each other. So, what's the difference between them and what does it matter? Ocean Atlas 5 Zhang Hai (English: Ocean, sea French: mer), on the edge of the ocean, is an accessory part of the ocean. The area of the sea accounts for about 1 1% of the ocean. The water depth of the sea is relatively shallow, with an average depth of several meters to two or three kilometers. The sea is close to the mainland and is influenced by the mainland, rivers, climate and seasons. The temperature, salinity, color and transparency of seawater are all affected by land and have obvious changes. The ocean is the central part of the ocean and the main body of the ocean. The total ocean area in the world accounts for about 89% of the ocean area. The water depth of the ocean is generally above 3000 meters, and the deepest point can reach 10000 meters. The ocean is far from the land and is not affected by the land. Its moisture and salinity change little, and each ocean has its own unique ocean current and tidal system. The water in the ocean is blue and transparent, and there are few impurities in the water. Beautiful photos of the sea; Atlas? There are five oceans in the world, namely Pacific Ocean, Indian Ocean, Atlantic Ocean, Arctic Ocean and Southern Ocean. The Pacific Ocean is the largest and the Arctic Ocean is the smallest. In summer, the sea gets warmer and the water temperature drops in winter. In some sea areas, seawater will freeze. Where the river flows into the sea, or in the rainy season, the sea water will weaken. Due to the influence of land, rivers carry sediment into the sea, and the offshore seawater is turbid and the transparency of seawater is poor. The sea has no independent tides and currents. The ocean can be divided into marginal sea, inland sea and Mediterranean sea. The marginal sea is not only the edge of the ocean, but also close to the continental front; This kind of sea is widely connected with the ocean and is generally separated from the ocean by a group of islands. China's East China Sea and South China Sea are marginal seas of the Pacific Ocean. The inland sea is a sea located on the mainland, such as the Baltic Sea in Europe. The Mediterranean Sea is a sea between several continents, and its water depth is generally deeper than that of the inland sea. There are nearly 60 major oceans in the world. The Pacific Ocean is the largest, followed by the Atlantic Ocean, and the Indian Ocean is similar to the Arctic Ocean. 1983 Brief introduction of Yuan Jiashan: "Yuan Jiashan, also known as Lv Zu Temple and Little Penglai. ..... It is said that Japan will invade the Ryukyu Islands tomorrow, and Ming Chengzu will send Yuan Keli, the minister of the Ministry of War, to sail to the middle of the sea, causing a storm. The formation of the ocean 1. How did the ocean form? Where does the sea water come from? In fact, the sea was formed by too much water vapor during the first volcanic eruption in the history of the earth, and then it rained heavily for thousands of years and merged into the sea. 2. Studies have proved that some large and small nebulae were separated from the solar nebula about 5 billion years ago. They revolve around the sun while rotating. In the process of movement, they collided with each other, and some lumps combined with each other, from small to large, and gradually became the original earth. During the collision of nebula clusters, they shrink sharply under the action of gravity, and the radioactive elements in them degenerate, which makes the primitive earth heat up continuously. When the internal temperature reaches high enough, underground substances, including iron and nickel, begin to melt. Under the action of gravity, the weight sinks and tends to concentrate in the center of the earth, forming the core; Lighter ones float to form the crust and mantle. At high temperature, the water inside evaporates, rushes out with the gas and rises into the air. But because of gravity, they will not run away, but will only turn around the earth and become a circle of air and water. 3. The crust on the earth's surface is constantly impacted and squeezed by the violent movement inside the earth during the cooling and condensation process. As a result, the picture of the sea becomes uneven and sometimes crushed, forming earthquakes and volcanic eruptions, spewing out magma and hot air. At first, this kind of situation often happens, and then it gradually decreases and tends to be stable. This division of light and heavy substances led to great turmoil and reorganization, which was completed about 4.5 billion years ago. After the crust is cooled and shaped, the earth is like an apple that has been dried for a long time, and its surface is covered with wrinkles and uneven. There are mountains, plains, river beds and basins. Five, for a long time, the water vapor in the sky and the atmosphere * * * coexist; Thick clouds are gathering. It's dark. With the gradual cooling of the earth's crust, the temperature of the atmosphere is also slowly decreasing. Water vapor takes dust and volcanic ash as condensation nuclei and becomes water droplets, which accumulate more and more. Due to uneven cooling and strong air convection, thunderstorms and turbidity currents were formed, and it rained harder and harder for a long time. Surging floods, through thousands of rivers and valleys, converge into a huge water body, which is the primitive ocean. ? Click Load More.
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Knowledge about the ocean is urgent.
1. Why is the sea blue? When the sun shines on the ocean, only blue light is reflected back, while other colors of light are absorbed by the seawater, so the seawater we see is blue. 2. Why is sea water salty? When rivers, large and small, cross the land, they absorb a lot of salt from rocks and soil and bring it into the sea. So the sea water is salty. We set up salt pans along the coast to let the sea water evaporate slowly, and then we can get sea salt. The world produces about 654.38 billion tons of sea salt every year. 3. Why are there waves in the sea? Sea water itself does not produce waves. Waves are caused by wind, undersea earthquakes or gravity between the moon and the sun. Among these factors, wind has the greatest influence on waves. 4. How big is the ocean? If the earth's surface is divided into four parts, then three parts are covered by sea water and only one part is land. The earth can be said to be a veritable water planet. 5. Can the sea breathe? The phenomenon that the sea rises and falls on time is that the sea breathes rhythmically, every day, year after year. Its name is Tide. The sea never stops and contains great energy. There used to be a wire cage near the mouth of Qiantang River, which was filled with stones weighing 12 tons, but it disappeared without a trace after a tsunami. As early as 19 12, the world's first tidal power station was built. It has been calculated that if all tidal energy on the earth is utilized, it can generate10.24 billion kwh per year, which is equivalent to1.10.65438 Gezhouba hydropower station. 6. Why should we protect the ocean? The ocean covers 7 1% of the earth and is the main source of fresh water runoff in Chinese mainland. The vast water surface, huge water body and never-ending ocean current regulate the global temperature and precipitation. The ocean provides 3 billion tons of fish for human beings every year. Algae products alone are 20 times more than the total wheat output in the world at present, and the ability of the ocean to provide food is 1000 times that of the land. The recoverable reserves of submarine oil are about 300 billion tons, accounting for 40% of the world's total oil reserves. Manganese (měng) nodules on the seabed can be used by human beings for tens of thousands of years. Seawater also contains uranium, hydrogen isotopes and other nuclear raw materials, a large number of inorganic salts and other resources. The ocean also contains huge tidal energy, which is estimated to be about 654.38+0 billion kilowatts. If wave energy and ocean current energy are included, it will be even more impressive. Uncontrolled pollution and predatory development will inevitably seriously damage the marine environment owned by human beings. It has become a common sense that protecting the ocean means protecting the environment and the future of mankind. Why do you want to establish a marine nature reserve? The ocean is the cradle of life. So far, there are more than 200,000 kinds of creatures living there. According to statistics, there are 32 species in the animal kingdom, 23 of which live in the ocean. However, with the development of science and technology, the scope of marine development and utilization has been expanding, which has brought some adverse effects and even caused serious damage to the marine natural environment and natural resources. The most obvious thing is that the fish resources in some sea areas have dropped sharply, and some rare marine animals and plants are on the verge of extinction, which cannot but arouse people's great attention. The establishment of marine nature reserve can preserve some natural conditions in this sea area that are not disturbed by human beings, so that all kinds of marine life can be preserved and used continuously by human beings, which is of great significance to the development and utilization of marine resources, scientific research, culture and education and tourism. Internationally, the construction of marine nature reserves is regarded as one of the standards to measure the level of marine protection and cultural level of a country. The ocean is not only very vast, but also surprisingly deep. The deepest place is to put down Mount Everest, the world's highest peak, and its peak will be completely submerged by the sea! The vast and unfathomable ocean contains endless resources such as animals, plants and minerals. So far, more than 150000 species of marine animals have been found, ranging from whales over 30 feet long and weighing over 120 tons to zooplankton too small to be seen with a microscope. Countless fish, shrimps, crabs and mussels are all nutritious delicacies. There are more than 10000 kinds of marine plants such as seaweed, many of which are rich in indispensable fat, protein and vitamins, and can be used as excellent food or precious medicine. In the depths of the ocean, the more important treasure is the rich oil discovered by people! All this is just a part of the wealth in this huge secret warehouse of mankind. Because people's understanding of the ocean is still very shallow, there are still more treasures hidden in the depths of the ocean, waiting for people to develop. The Pacific Ocean is the largest and deepest ocean in the world, with the most marginal seas and islands. Its maximum width from east to west is about 20,000 km, and from north to south is about1.6,000 km, exceeding the total area of all continents and islands. The average depth of the Pacific Ocean is 4,028 meters, more than half of which is over 5,000 meters. The deepest part is the Mariana Trench, with a depth of 1 1034 meters. The Atlantic Ocean covers an area of 93.36 million square kilometers with an average depth of 3,626 meters. The deepest part is located in the Puerto Rico trench, which is 9218m. The Indian Ocean covers an area of 74,965,438+/kloc-0,000 square kilometers with an average depth of 2,897 meters. The deepest part is the Java trench, which reaches 7450 meters. Arctic Ocean area 1365438+ 10,000 square kilometers, average depth 1200m, maximum depth 5449m.
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