Where does the water on Earth come from? How did the ocean come to be?

Water is an important substance that we need in our lives, and it is also one of the common substances on the earth, it can be said that there will be no living things on the earth without water, for example, there are no water resources on some other planets in the universe, so there is no trace of living things on it. In fact, everyone is very confused, where does the water on the earth come from? How did the ocean come to be?

There are two theories about the ** of water, one is from a comet, and the other is composed of oxygen molecules and hydrogen molecules. Oceans are formed by the movement of the earth's crust.

In fact, when we were in middle school, we learned in chemistry class that water is composed of two hydrogen and one oxygen combined to form a water molecule. At the time of the dawn of the solar system. There are a lot of oxygen and hydrogen atoms floating in the air, and it is at this time that they combine to form water.

Of course, there is another theory, which is from a comet, because your comet has ice cubes, and many people think that the ice cubes melt and turn into water and flow to the earth. As for the ocean, the impact of some meteorites and planets on the earth will cause the surface of the earth to begin to change, and then there will be some folds and the like, and the water will flow into it, and then the ocean will be formed.

Water is a liquid with no color or taste, and more than 70% of the earth's surface is covered by water. Therefore, people have a kind of mentality of not saving water, thinking that there is a lot of water on the earth anyway, and it doesn't matter if it is wasted. Although there is a lot of water resources, there are very few fresh water resources for us to drink, and some water in nature is not drinkable by humans.

Water is an important substance to ensure that our lives can continue, and water resources are not easy to come by, and we must not waste them when we use them in ordinary times. The other is to protect our oceans, every grass and tree in nature, there must be a reason for its existence, we cannot destroy nature, we should follow some laws of nature. Protect the place where we live, and it will protect us.

Most of the water on the earth is groundwater, which is buried deep underground and accumulates with moisture over many years. The ocean is the origin of all life, and it has appeared since there was no life on Earth.

The water on the earth is a combination of hydrogen and oxygen, and the earth was formed with a lot of water at the beginning of its formation, and the ocean was formed because of the abundance of water.

The entire planet is covered by the atmosphere. In this way, the more the earth exhausts and sweats, the more water in the atmosphere, the more liquid water collects on the surface, and the oceans are formed.

The water on the earth is the earth itself, and due to the climate, the water evaporates, and it rains when the weather is right. The formation of the oceans is due to the previous movement of the earth's crust.

Big face encyclopedia, three minutes of popular science, where does the water on the earth come from? How did the ocean come to be?

"Nowadays, mainstream scientists believe that the water on Earth may be composed of water brought by the Earth and water sent by asteroid impacts, which exists on the surface of the Earth in liquid form under suitable temperature conditions, forming a primordial ocean. The Origin of the Ocean Although the ocean appeared early in the formation of the earth, the composition of the ocean, and the size of the ocean, are not fixed. The composition of the oceans can change at different times, because the water in the oceans will evaporate into the atmosphere, and the water vapor in the atmosphere will condense into rain and fall to the earth's surface.

It comes from outside the Earth, and may also be carried by comets or asteroids. Because the water vapor on the surface of the earth is accumulating more and more, clouds are formed, and finally raindrops fall.

No one can say what these waters are, and the formation of the oceans is mainly based on changes in the weather.

Seawater starts behind the rocks of the earth and evolves into liquids, becoming the source of the oceans. It is also said that meteorites land on the earth and bring water and gas to the universe, thus forming oceans. The Blue Planet should mention the ocean.

The entire planet is almost surrounded by oceans, and only a small fraction of the land inhabited by people is inhabited. Therefore, as the climate warms.

There are fears that if the sea ice melts, the minimum water level of the ocean will rise a lot, the land will soon be submerged, and humans will have nowhere to go. The point is that according to human exploration, no life has been found on other planets, and there are traces of water sources. There is a theory that there is so much seawater on Earth that it was stored in rocks when the Earth first evolved.

Meteorites and impacts belong to the same cosmic galaxy.

In addition to the Earth in orbit, there are many asteroids in the universe, and even the fastest ones in the universe are orbiting along certain trajectories. Some cosmic meteorites can go astray because they are running too fast or out of their original orbit. Some meteorites hit the Earth.

When they came to Earth, they also mixed with a large amount of cosmic water, bringing abundant water vapor to Earth.

Thus gave birth to the ocean. Maybe there is water in the rocks of the earth itself, but there is not so much water, and with the entrainment of cosmic fragments, such a vast ocean is formed. There is also a saying about the combination of hydrogen and oxygen, we have learned about the combination of hydrogen and oxygen atoms in chemistry, and we know that there will be a certain chemical reaction after the combination of hydrogen and oxygen atoms.

Then water molecules will appear.

Especially on Earth, there is strong hydrogen and oxygen, which are combined by certain special effects, so it is possible that the vast oceans come from here.

Modern astronomical and geological studies have shown that Venus and Mercury, which are closest to the Sun.

Mars, which is farther from the Sun, is short of water. Only the earth has so much water. All of this has made scientists wonder and have discussed the true nature of the earth's water.

In fact, these views are still speculation, and the day when the mystery of the earth's water source is truly solved is still far away. Sea water from **? At that time, the various materials that made up the earth contained large amounts of water and gases, which were loosely bound together with the rocks.

Due to the gravitational pull of the earth.

These rocks overlap more and more closely, squeezing each other, thus expelling the water vapor from the rocks.

Over time, the water vapor extruded from the ground accumulates more and more. They continue to gather and converge, and eventually there are many large-scale ** on the nascent Earth, causing violent volcanic eruptions.

At this time, a large amount of squeezed water vapor finally broke free from the constraints of the rocks and rushed out of the earth's crust with the ** and volcanic eruptions. Water vapor enters the air, condenses when it is cold, turns first into clouds, then into rain, and falls to the ground. Because the water vapor in the rock is constantly squeezed out, it keeps entering the air through the volcano and **, and heavy rain is constantly falling.

We can imagine the scene on the earth at that time: lightning, thunder, storms, roaring turbidity currents through thousands of rivers and valleys, converging into the first depressions, thus forming the first rivers, lakes and seas.

Where did the oceans on the earth come from, there is no certainty in this answer, and no one knows where the oceans on the earth come from, because the earth is also a planet, like Venus and Jupiter Saturn, each planet is born with a fixed ocean, and has not decreased or increased, so the oceans on the earth are also born with the earth.

70% of the planet is made up of oceans. Oceans are created due to the movement of the earth's crust. The ancient earth was made up of seas and land. The seven tectonic plates are like floating on the ocean.

Some scientists believe that the water on Earth is all left in the ocean created by extraterrestrial objects when the asteroid hit 10,000 years ago.

Mainly from outer space, such as comets. There are a lot of things like comets at the edge of the solar system. But their main ingredient is ice cubes and the like.

They walk near the Earth from the far edge of the Sun, are attracted by the Earth, suck some of it, and bring water to the Earth in this way. There is also a part of the water that comes from the earth's crust. The main thing is still from outer space.

The vast ocean occupies nearly 3 4 of the earth's surface, and seawater is the main body of the earth's water, accounting for the total amount of water on the earth. So much seawater comes from?

Earlier it was believed that this water was intrinsic to the earth. When the Earth condensed from the primordial solar nebula, this water existed in minerals and rocks in the form of structural water, crystalline water, etc. Later, with the continuous evolution of the earth, the light and heavy substances were differentiated, and they were gradually released from minerals and rocks and became the first of the seawater.

For example, volcanic activity is always accompanied by a large amount of water vapor spilled out with magma, which some believe is the "primordial water" released from deep in the earth.

However, scientists have studied the "primary water" and found that it is nothing more than surface water that seeps into the ground and then recirculates to the surface. Moreover, among the Earth's closest neighbors, Venus, Mercury, Mars, and the Moon are all water-poor, and only the Earth has such a huge amount of water. It's really confusing.

Some scientists believe. The water on Earth, at least most of it, is not intrinsic to Earth, but is brought by comets that crash into Earth. Because from the thousands of ultraviolet radiation** of the Earth's atmosphere sent back by artificial satellites, it is found that there are always some small spots on the disk-shaped image of the Earth, each of which exists for about two or three minutes, covering an area of 2,000 square kilometers.

Scientists believe that the spots are caused by the rush of small comets made up of ice blocks into the Earth's atmosphere, and are the result of the conversion of this meteorite ice into water vapor due to frictional heat. It can also be estimated that about 20 small comets enter the earth every minute, and if their average diameter is 10 meters, then 1,000 cubic meters of water enter the earth every minute, and it can reach about 0 5 cubic kilometers a year. In the 4.6 billion years since the formation of the Earth, 2.3 billion cubic kilometers of comet water will enter the Earth.

This figure is clearly much larger than the total amount of seawater available. Therefore, it remains to be verified whether the above view is correct.

Other scientists believe that water is intrinsic to the earth. Although volcanic steam and thermal spring water mainly comes from the surface water cycle, it cannot be ruled out that there is a small amount of "primary water". If the Earth had maintained the same amount of water vapor as it did during volcanic activity today, the cumulative amount over billions of years would be 100 times the total volume of the Earth's vapor and oceans today.

So they think that 99 of them are circulating water over and over again, but there is l of it being "primordial water" from the mantle. And it is this part of the water that makes up the ** of the seawater. The Earth's neighbors are water-poor because their gravitational pull is not enough, or the temperature is too high to retain water, and it cannot be inferred that the earth was also water-poor in the early days.

At present, various opinions are still divided.

Where does so much water in the ocean come from? You would say that it fell from the atmosphere and flowed in from a river. So, where does the water in the atmosphere and rivers come from?

After all, it comes from the ocean. It is estimated that 447,980 cubic kilometers of water evaporate from the ocean into the air every year, and a very large part of this water (about 411,600 cubic kilometers) condenses into rain over the ocean and falls back into the sea. The other part lands on land, and then flows back to the ocean from the surface or through the ground. And so the cycle goes on and on, so there is always a lot of water in the sea, and there are never a thousand holes.

So, what about the original source of this seawater7

Most of the water on Earth is stored in the oceans. Therefore, to answer the question of where the sea water originally came from, in fact, it is also for the question "What is the eternal on earth?" "The answer to this question is being found.

There is a belief that the water on the earth was separated from the cosmic matter when the earth was formed, and after the formation of the earth, the water from the interior of the earth was continuously precipitated and collected on the surface. This is confirmed by today's volcanic activity. The scale of water separation from the ground is still huge, and a single volcanic eruption can spew out millions of kilograms of alum.

It is conceivable that in the long history of the earth, a lot of water was produced in this way. It is generally believed that this is the main water on Earth.

There can be a lot of water in the ocean, and it has a lot to do with the gravity of the earth, which can attract water and prevent it from escaping into space.

In addition, there is a lot of water in the ocean, which is related to the fact that the temperature on the ground is relatively moderate. On the surface of Venus, the water turns into steam due to the high temperature; On Mars, the temperature is so low that the water is frozen, and there is no water in the hollows there. On the earth, due to the change of climate and warmth, it has also affected the increase or decrease of the amount of water in the ocean many times.

When the climate becomes colder, most of the water on the earth condenses into ice, and the amount of water flowing back into the ocean decreases, causing the sea level to lower and the sea water to become shallow; When the climate warms, the snow and ice on the continent melt, and the water flows into the ocean, and the sea level rises, and the sea becomes deeper again.

Now, you should understand why the sea water comes from the first and why it doesn't dry up!