Arabia's weather - planet Earth has a huge atmosphere, it even affects the path of the International Space Station, and it is so far around the Earth due to Earth's gravity, but how did this giant gas cover form? What distinguishes it from the rest of the planets?
The story of Earth's atmosphere
When the Earth was formed about 4.5 billion years ago from a hot mixture of gases and solids, the molten planet barely had an atmosphere, but with the cooling that happened to the Earth, the atmosphere formed, and most of it was from the gases emitted from volcanoes, except that it was completely different from the existing atmosphere Today, it contains 10 to 200 times more hydrogen sulfide, methane and carbon dioxide than the modern atmosphere.
Scientists believe that Earth's first atmosphere was somewhat similar to that of Venus, which consisted of nitrogen, carbon dioxide, and possibly methane. Then, after about half a billion years, the surface of the earth cooled and hardened enough for water to pool on it, and then life began on the surface of the earth somewhere on the ocean floor.
About 3 billion years later, the system of photosynthesis or photosynthesis evolved in the first organisms, which means that single-celled organisms used the energy of the sun to convert carbon dioxide and water molecules into sugar and oxygen gas, and this greatly increased oxygen levels.
At present, the Earth's atmosphere consists of 80% nitrogen and 20% oxygen, in addition to argon, carbon dioxide, water vapor, and many other gases.
The effect of the existence of the atmosphere on Earth
Our atmosphere protects the earth from the harsh rays of the sun, and reduces the great rise in the earth’s temperature or the great decrease. The earth’s atmosphere works to trap heat or energy coming from the sun to the earth, as that heat accumulates in the atmosphere after it is absorbed and released by greenhouse gases. There are several different types of greenhouse gases present in the atmosphere. The most important ones are carbon dioxide, water vapor, methane and nitrous oxide, and this effect of heat trapping is important for the Earth because without it the Earth's temperature would be below freezing point .
However, greenhouse gases are out of control today. As humans release more carbon dioxide into the atmosphere, the severity of the greenhouse effect on Earth has increased, and this affects the planet's climate to become warmer .
What distinguishes the Earth's atmosphere from the rest of the planets
It is interesting that there is no other planet in the universe that has an atmosphere like the planet Earth, as Mars and Venus have two atmospheres, but they do not support life for living organisms like the ones on Earth, because they do not have enough oxygen.
The atmosphere of Venus is mainly composed of carbon dioxide with clouds of sulfuric acid, and the air there is so thick and hot that no human can breathe, as Venus' thick atmosphere, rich in carbon dioxide, traps a lot of heat, making it the hottest planet in our solar system. The surface temperature there is hot enough to melt lead .
The pressure of Venus is about 90 atmospheres, equivalent to diving 914 meters under the ocean waters on Earth, to the point that the Russian spacecraft that went to Venus was crushed within a few seconds.
As for the Earth, it has a unique and distinct atmosphere compared to the other planets in the solar system, which is completely different from any of the other planets, and this is what God Almighty created to appreciate life on Earth, because without the Earth’s atmosphere there would be no life as we know it, and this atmosphere became part An important part of the biological system on Earth.