Without the special oxygen system, no one can travel in space. Because there is no air in the space beyond Earth. They have to wear a space suit because there is no air pressure. If not then the liability to be saved. To be accustomed to being in an airless environment all the time, it is necessary to practice in artificial ventilation in NASA's laboratory for a long time.The question is, is the earth rotating in a certain orbit in space? There is no air in space, but there is air on earth. How is this possible? Is this an exception? If so, how did this exception occur?
No doubt this is an exception and not only that, it is a unique exception. At least no other planet in our solar system has an oxygen-rich atmosphere like Earth. There is wind on earth today, but it was not there at first. Scientists think that the sun, the earth and other planets are created at the same time. There was no sea or air on the earth at that birth. If there was, the early solar eclipse would have flown by. The air in the sky of the earth came after.
In the beginning, there were millions of volcanoes on earth. There was often eruption. A lot of steam would come out. Steam contains a water element - two hydrogen and one oxygen atom. Carbon dioxide and ammonia gas were also released from the volcano. All of this is the atmosphere of the earth.
At first, carbon dioxide in the air dissolves more in sea water. Bacteria of water absorb sunlight and carbon dioxide and release oxygen into the air. Thus, the rate of oxygen increases in the air. On the other hand, ammonia molecules split into strong sunlight and produce nitrogen and hydrogen. Thus, the atmosphere of the Earth is composed of 5 percent nitrogen, 20 percent oxygen and some other small amounts of gas. This atmosphere has become one of our conditions for survival.
Light planets exist on other planets. The atmosphere of Mars is very light. Its density is only 1 percent of our atmosphere. There is almost no oxygen. The atmosphere of large planets like Jupiter, Saturn, Uranus, Neptune, and all of them contain hydrogen, helium, methane and ammonia.
That is why, in our world alone, there is an atmosphere for the survival of many beings, including humans. But now the earth's atmosphere is facing a new problem. This is due to the accumulation of carbon dioxide in the air at high rates. Carbon dioxide increases the average global warming. Not only that, climate disasters also occur. Now that many countries in the United States and Europe are experiencing uneven cyclones, tides, and fires, it is a sign of climate change and its source is carbon dioxide growing in the atmosphere. It is dangerous to protect the existence of life.
Why is carbon dioxide soaring? You need to know the root cause of this about 3 years ago. At that time, the rate of burning of coal and gasoline-fossil fuels, especially in Europe, was constantly increasing. Coal and gasoline are required to operate the mill, rail, automobile, etc. And burning these fuels produces energy, but carbon dioxide is also accumulated in the air at higher rates. As a result, the average temperature of the earth increases.
Climate experts say carbon dioxide emissions in the air should be reduced. If the average warming of the world by 20 is one and a half degrees or more than during the Industrial Revolution, two degrees cannot be allowed to rise. It is one of the conditions for the survival of life on earth. Besides, the forest needs to be protected and enhanced.
Therefore, it is not enough to have just the air in the atmosphere of the earth, it is also a duty to maintain the necessary balance between its components. Particularly reducing the carbon dioxide rate in the air and keeping the oxygen rate in the required ratio is one of the challenges of globalization.

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