What is the next sentence of Why are you so deep in the sea, the sea ?

Because! A Qin Caijun is playing with his mobile phone every day!

Underwater animals need meThe sea, the sea, I ask you, why are you so beautiful?

The sea comes with a smile: because the sun shines on me.

The sea teases the sea, I ask you, why do you make waves?

The sea comes with a smile; Because the wind is coming.

The sea, the sea, I ask you, why are you so wide?

The sea comes with a smile: I can sail in my belly.

The sea, the sea, I ask you, why are you so deep?

The sea comes with a smile: the animals of the sea need me.

The sea, the sea, I ask you: what are the stone crevices at the bottom of the sea?

The sea came with a smile: there was treasure in the cracks of the stone.

Seawater. Seawater is water in or from the sea. The sea is fluid, and there is no limit to the amount of water available for the Yama Sakura humans.

Seawater is a veritable liquid mineral, with an average of 35.7 million tons of minerals per cubic kilometre of seawater, and 80% of the more than 100 elements known in the world can be found in seawater.

Seawater is also the first freshwater on land and the regulator of climate, the world's oceans evaporate 4.5 million cubic kilometers of fresh water every year, of which 90% is returned to the ocean through rainfall, 10% is turned into rain and snow to fall on the earth, and then return to the ocean along the river. Seawater desalination technology is developing into an industry. Some people predict that with the deterioration of the ecological environment, the last way for humans to solve the water shortage is likely to be desalination.

The sea of the sea I ask you, why are you so blue, the sea sings and answers me, I hold the sky in my arms. The sea I ask you, why are you so salty, the sea sings and answers me, because the fishing ** sweats! This children's song handed down from Qingdao's hometown has made me understand the sea more, that is, it is not only a vast sea, but also a witness to the vicissitudes of human history.

The sea is so big, why are you so lazy.

The sea is not flat-bottomed, and the world's border coast is also the largest sea in the world, the Coral Sea, with a maximum depth of 9,140 meters, which is the deepest along the border coast. The deepest part of the world's oceans is the Mariana Trench in the Pacific Ocean, reaching a maximum depth of 11,521 meters, and the top trenches are all in the Pacific Ocean. Every time the water depth increases a little more than 10 meters, the pressure increases by one kilogram, if it is fresh water, this data is meters, the proportion of salt in seawater is larger, and the salt content is different in each sea area, approximately every 10 meters increased, the pressure increases by one kilogram, in the seawater at a depth of 9000 meters, the pressure should be 900 kilograms square centimeters.

The largest and deepest sea, the Coral Sea, is covered by water on 70 percent of the earth's surface, so the earth is also called the "water planet", and most of these 70 percent of the water is ocean, and the sea is only a part of it. The size and depth of the world's oceans vary, but the largest and deepest sea is the Coral Sea in the South Pacific. The Coral Sea is home to schools of sharks, which is why it is also known as the "Shark Sea".

The Coral Sea covers a total area of square kilometers, equivalent to half the land area of China, and is bounded by mainland Australia to the west, the Tasman Sea to the south, and the New Hebli Islands, Solomon Islands, and New Guinea (also known as Illian Island) to the northeast. Geographically, it is the largest genus sea in the South Pacific. The Coral Sea is the deepest sea in the world, with a depth of 3,000 4,000 metres in most places and a maximum depth of 9,174 metres.

The Coral Sea is located near the equator, so it also has high water temperatures, with temperatures above 20 throughout the year and even over 28 in the hottest months. One of the reasons why there is little water pollution in the Coral Sea is that the water is so clear and transparent that there is plenty of light to live for a wide variety of coral polyps. At the same time, the salinity of the seawater:

Generally between 27 and 38, this is also an ideal environment for polyps to live, so there are a large number of polyps reproducing and reproducing on the continental shelf in the sea and in the shallows of the sea. Over time, it has developed into a multitude of coral reefs of different shapes, which at low tide will emerge from the sea, creating a gorgeous spectacle unique to tropical seas. Hence the name "Coral Sea".

We already know that coral reefs can be found almost everywhere in the Coral Sea, and the largest of these reefs is the Great Barrier Reef, which floats like a giant colored ring in the water. At the same time, there are often many colorful, rich and active creatures floating around the reef, which contrast with the mottled coral reefs, presenting a bizarre fairy tale world.

The average depth of the world's oceans is 3800 meters. The deepest depth of the ocean seems to be the Mariana Trench--- which was measured by Soviet survey ships in 1957 to a depth of 10,990 meters, and then a new record of 11,034 meters was set later.

Why is the sea so deep, it stands to reason that the land has been washed away by rain for a long time. A large amount of land sediment is lost, forming the beauty of nature, and long-term rain washes away, forming canyons, rivers, and flowing into the sea. At the same time, due to the structure of the earth's crust, underground rivers are also formed, and the water must flow downward.

Perhaps because the outlet of the underground river of the earth's crustal structure is in the deepest part of the ocean, it is equivalent to the spring water gushing out in the depths of the ocean to flow the surrounding sand and soil to other places with the current, so the sea depth remains unchanged for a long time!

There are two reasons for the depth of the sea, both of which are indispensable

First, the earth's surface is inherently uneven, and there is a lot of difference between the highest and lowest places, such as 8,848 meters above the horizon of Mount Everest, and the Mariana Trench is more than 8,000 meters below the horizon.

Second, there are very abundant water resources on the earth's surface, 70% of which are water. So much water is necessary for the formation of the sea, assuming that there is only 1% of the earth's surface water, then it is estimated that there will be no sea, at most a few lakes, and the rest are mountains and valleys.

In addition to being deep, it is boundless.

The bottom of the sea, like the land where we live, has mountains, canyons or plains under the sea. The deepest part of the ocean floor should be the trench, which is equivalent to the Grand Canyon on land. The deepest of these trenches is the Mariana Trench in the Pacific Ocean, reaching a maximum depth of 11,521 meters.

The Pacific Ocean, including the sea, has an area of 10,000 square kilometers and an average depth of meters, and the area excluding the sea is 10,000 square kilometers and has an average depth of meters.

The Atlantic Ocean, the second largest ocean in the world, originally covered an area of 82,217,000 square kilometers, was adjusted to 76,762,000 square kilometers after the establishment of the Southern Ocean, with an average depth of 3,627 meters, and the deepest Puerto Rico Trench was 8,605 meters deep.

The Indian Ocean, including the sea, covers an area of 10,000 square kilometers and has an average depth of meters; The area excluding the sea is 10,000 square kilometers, and the average depth is meters. The maximum depth is the Te Amantina Trench, which reaches 8,047 meters.

The Arctic Ocean covers an area of only 15 million square kilometers, less than one-tenth the size of the Pacific Ocean. It has a depth of 1,097 meters and a maximum depth of 5,499 meters.

In fact, it is not how deep the sea is, but the ocean is very godly, but it is a pity that the world is not divided into oceans.