Can the water on earth be dried up?

Hope this helps!

The water on the earth will never dry up.

The following are some of my personal opinions based on my own knowledge and experience. They are by no means plagiarized or downloaded from the Internet. They are for reference only:

The Earth’s water environment It is a cyclical system that starts over and over again and never stops. Under the heating of the sun, the water in the sea and other water bodies on the earth's surface is constantly evaporated, forming water vapor, which rises to the sky to form clouds, and then falls over the land with the atmospheric circulation movement to form rainfall, forming surface runoff, which feeds the rivers. Large rivers continuously replenish water sources, and most of this water flows down rivers and back to the sea. In this way, a cycle is completed. If precipitation occurs in plateau snow-capped mountains and glacier areas, it will replenish the ice and snow resources in these places so that the sources of rivers will never dry up. Judging from the water flow composition of large rivers, the glaciers and source water in the source area only have a symbolic meaning for a river. Its water source only accounts for a very small part of the total water volume of the river, and most of it is natural precipitation in the basin. Gathered in streams and rivers to form. Therefore, the rivers flow continuously day and night, and there is no danger of their water sources drying up.

The Yellow River's drying-up problem: The Yellow River has been experiencing continuous drying-out problems in recent years. This is of course related to the changes in the overall climate, but it is mainly caused by human interference in the environment. From the perspective of Qinghai and other upstream provinces, the water volume of the Yellow River has not changed much. In the middle reaches, due to the large amount of water used for industrial and agricultural production, the water of the Yellow River has been artificially extracted, causing the water volume in the lower reaches to decrease sharply and even dry up.

The impact of the greenhouse effect on ice and snow at the source of rivers: In recent years, due to the influence of the greenhouse effect, the ice and snow in the source areas of rivers has a tendency to decrease due to melting. However, this reduction process is very slow, and there is no possibility of drying up in the near future. From the current perspective, the accelerated melting of glaciers will also increase the amount of water at the source of rivers. Moreover, there is a dynamic balance between this melting and the formation of new ice and snow glaciers from natural precipitation (snow). On the one hand, they are constantly being melted, and on the other hand, they are constantly being replenished by precipitation (snow). One is ebbing and the other is increasing. To put it another way, even if the glaciers melt away, the water circulation environment in the atmosphere will still exist, and the rivers will not dry up forever. Of course, in that case, the earth's water environment will be worse, natural disasters will be more frequent and severe, most rivers will dry up or dry up seasonally, and water source conflicts will become more acute and prominent.

Just a joke: If the earth’s temperature rises to 100 degrees Celsius, all the seas will dry up. At that time, the great rivers will dry up forever.

Where does so much water on the earth come from? At present, most scientists believe that the water on the earth is the gradual dehydration and degassing of the materials that make up the earth over the long history of the earth. And formed. The earth was formed by the condensation of interstellar dust. In the initial stage, the earth was a cold condensation mass. It was the collision of gravity and particles that caused these interstellar dust materials to be tightly compressed together to form the primitive earth. Later, the radioactive elements inside the earth continued to metamorphose, and the temperature of the solidified mass continued to increase, eventually forming an earth that we can inhabit. Scientists analyzed the chondrites that make up the Earth's mantle and found that they contain 0.5%-5% water, with up to 10%. If only 1/800 of the meteorites that made up the original Earth were these chondrites, it would be enough to form the Earth's hydrosphere today. The question is, was this the case at the beginning? There is no conclusion yet.

Another explanation is that volcanic eruptions spewed out large amounts of water. Research on today's active volcanoes has revealed that the eruptions of billowing smoke and hot lava are indeed accompanied by the release of large amounts of water vapor into the Earth's atmosphere. Water vapor accounts for 75% of the ejected gas, which is indeed a large amount. For example, there is a volcano in Alaska called "Valley of Ten Thousand Smokes", which erupts gas every year. There are 66 million tons of water vapor alone. Since the birth of the earth, no one knows how many volcanoes have erupted, and the number of them cannot be counted. The water vapor spewed out is even greater. Some scientists even believe that at least half of the existing water on Earth comes from water vapor ejected by volcanoes. Why can volcanoes erupt water vapor? Because the rocks and magma deep underground contain quite a lot of water. When a volcano erupts, due to the high temperature of the lava, the water in the magma naturally evaporates and escapes from the earth's surface. When this water vapor reaches high altitudes, it encounters cold air, condenses into water, and eventually falls to the ground, forming a trickle of water and entering the ocean.

According to research by scientists, the early earth was very hot. About 600 million years ago, the temperature of the earth's surface dropped to 30°C. At this time, 99% of the water vapor in the atmosphere fell to the ground, and oceans, rivers and lakes began to exist on the earth. Water is the source of life. Only with water can living things begin to exist on the earth.

However, some scientists believe that the water on Earth comes from ice meteorites. What is an ice meteorite? It is a meteorite that falls to the earth in the form of ice from space, because its main component is ice. Ice meteorites have not only been discovered in the United States, Spain and other countries, but have also been reported in our country. For example, in 1983, an ice meteorite with a diameter of 50-60 centimeters fell to the ground in Wuxi City, Jiangsu Province, my country. Ice meteorites that fall to the ground are relatively small, and most of them melt in the atmosphere. They become one of the important sources of atmospheric water vapor. Scientists say that the earth can obtain 1 billion tons of water from ice meteorites in a year.

As for the source of water on the earth, scientists used to believe that the source of water is the interior of the earth, which was naturally produced when the earth was formed. This type of theory is riddled with loopholes, limitations, and difficulties, and is rarely taken seriously these days. American scientists recently proposed an eye-catching new theory: the water on Earth comes from comets made of ice from space.

This theory is correct in looking outward, but when it comes down to icy comets, it will cause many problems. For example, it cannot explain why the earth alone among the nine planets has become a "magnet" for massive icy comets. "?

The earth's water was indeed placed on the earth by some force, and the atmosphere was used to fix this water on the earth through the atmospheric water cycle. If only water was placed without an atmosphere, no matter how much water there was, it would have been lost in space.