Lead
The Earth's oceans occupy 71% of the Earth's surface, but in fact only 96.5% of all water on the Earth is seawater, and the Earth's freshwater resources are very limited.
But what would happen if all the water in the Earth's oceans was freshwater?
Could it be that all the marine life on Earth will suddenly die because 100% salt water suddenly turns 100% freshwater?
In fact, this is not the case, on the contrary, I am afraid that the first creature on Earth has not even appeared.
However, why is there salty sea water on the earth, and what is the difference between salty and light?
What are the serious consequences if the earth's seawater turns into fresh water?
1. How much seawater and freshwater are on the earth?
Seawater accounts for 96.5% of the earth's total water, which means that three liters of water out of every four liters are seawater, and the remaining one liter is the earth's freshwater resources.
During the Ice Age, hundreds of thousands of years ago, the Earth's freshwater resources increased rapidly, producing seawater closer to freshwater, and marine life benefited from it.
The retention of fresh water in the earth's water is due to the reproduction of water cycles, and scientists have also tried to estimate what will happen to the earth's water resources if the recycling speed is accelerated.
There are very few water resources that can be drunk with fresh water on the earth, such as rivers, lakes, groundwater, etc., which can be called freshwater resources.
What is the total amount of freshwater resources on Earth?
According to statistics, there are 3,750 billion cubic meters of freshwater resources in the world.
Let's use this data to compare how much water there is on a small earth.
The total amount of water on the earth is 13600000000 cubic meters, that is, 1.3 billion cubic meters, and sure enough, the earth is a blue planet, and it is all water.
The salts obtained after the concentration of seawater, the salts in the composition of the earth's water all come from this, how concentrated should the salts contained in the seawater be?
The average salinity of seawater is 35‰, which means that each kilogram of seawater contains 35 grams of salts, which is still a very salty water.
Specifically, the salinity of 34‰ is sodium chloride, and the remaining 1‰ is magnesium sulfate, calcium sulfate, sodium sulfate, potassium sulfate, calcium fluoride, and so on.
The concentration of these salts in seawater is very high, but if you take all the salts on the earth and put them together.
In fact, there is no saltiness at all, because only the salts in the water will produce a salty taste after they are dissolved in the seawater, and the salts exist in the form of ions in the sea.
2. What role does salinity play in seawater?
There is a kind of physics on the earth called earth, this discipline mainly studies the physical properties of the earth, and marine physics is a branch of geophysics.
The salinity in seawater is mainly caused by the evaporation of water vapor in the sea and precipitation that falls on the sea, because the water vapor will carry a certain amount of salts.
Therefore, the water vapor and precipitation that falls on the water will increase the salinity of the seawater, although not much.
But this is not the main reason, because the salty substances in the sea water do not evaporate at all, only the water evaporates, so whenever the water vapor continues to rise from the sea surface.
They are all "pure water", so the seawater will become saltier and thinner, and eventually it will become a "steamed candy" made from pure water, and the salts in it will not evaporate.
The salts in seawater are like a mountain that can't be put down, and it takes constant evaporation of seawater to release them into the world.
If there is no constant evaporation of seawater, then if all the seawater is evaporated, there will be a thick salt crust.
If the water in the earth's oceans turns into fresh water, then there will be no volcanoes, earthquakes and other phenomena on the earth, because these phenomena are caused by geological movements, and one of the main reasons for geological movements is the "transformation" made by the earth in order to balance the temperature difference between the inside and outside.
The biggest difference between seawater and freshwater is their density, which is more dense and denser than freshwater.
Therefore, in order to balance the temperature difference between the inside and outside, seawater will continue to circulate, and seawater has a crucial impact on the temperature of the earth.
As the temperature rises, the seawater evaporates, and the evaporated seawater settles to the seabed as cold liquid, creating a flow of flowing water.
Currents towards the equator, so if all the seawater on Earth turns into fresh water, there will be no flow in the sea, no rivers to talk about, and no better climate connections between continents.
At the same time, marine life has an impact on the environment in which life is to be born.
The chemical elements in seawater are the basis of life on earth, and life is born and conceived in the ocean, so life on earth is also very sensitive to the quality of seawater.
Newly born beings have a kind of "attachment" to this living environment, and as the environment changes, very few life forms can adapt, but most life beings do not have this ability.
So the evolution of life on Earth will be interrupted, and if there is life on Earth, it must have started from the origin of biology, which is also where the origin and "only" of life began.
If there are no "traces" of life on Earth, or if the seawater does not provide this environment for life because of its mass.
Then there would be no life on Earth, and the connection between the origin of life on Earth and the sea would be severed, so life on Earth would not be able to arise.
3. How much seawater and fresh water are on the earth?
There are many benefits to turning seawater into fresh water, but doing so will have a significant impact on the ecological environment of the earth, so can we turn seawater into fresh water without affecting the ecological environment of the earth?
First of all, if we want to extract salts from seawater, we can do so by evaporation, so that a large amount of water vapor that suddenly rises escapes from this world, and the escaping water vapor will definitely carry the salts in seawater.
In this way, the seawater can be "purified", and eventually what is left is fresh water, and there can be a new source on land, when the underground water resources are scarce.
Some of the brackish water can be turned into fresh water to replenish it, and after the seawater evaporates, what is left is a thick salt crust, so that the salt can be extracted and used in production.
It can also reduce the pressure on the mining of the earth's ore resources, and salt substances are used everywhere in modern industrial production, so it can be said that salt is indispensable in modern life.
Therefore, this way can effectively use resources and reduce the impact on the environment, which is also a very environmentally friendly way.
Secondly, there is another way to achieve the transition from seawater to freshwater, which is to use the characteristics brought by the different sources of cold and heat, and the density difference between seawater and freshwater can be used to deposit salts in seawater to the seabed, and freshwater will float upward, so that the "conversion" from seawater to freshwater can be realized.
Another is the use of hexafluoroboronic acid, which causes organic and inorganic substances to react with "binary" ions to produce saltier seawater, lighter seawater, and gases.
Through these three environments, the saltwater can be separated, thus turning the saltwater into fresh water, thus providing more choices for people's lives.
However, people still do not easily modify the seawater, because of the practice of "giving way", the earth has finally formed a "can't scratch" the earth.
epilogue
The salts contained in seawater have a significant impact on marine life and the earth's climate and temperature, so the seawater above the earth is born for life.
Therefore, people should not easily change the material composition of seawater, if people can really live on an alien planet one day, then human beings can change alien planets like the Creator.