/ / What is the atmosphere and what is it for?

What is the atmosphere and what is it for?

The atmosphere is the "air coat" of the Earth, so itscall, and life on our planet without it would be impossible. Those cosmic worlds where there is no atmosphere cannot be praised by living organisms. This “fur coat” from the air weighs 5 billion tons, and from it we take oxygen, and the plants breathe carbon dioxide. Passing through it, the destructive hail of fragments from space is neutralized, and the ozone ball is our salvation from ultraviolet and other radiation. So what is the atmosphere? Let's talk more about it.

what is the atmosphere

The atmosphere is the gas envelope of a celestial body,stars or planets. The constituent gas is retained by gravity, so it is rather difficult to determine where its layer ends. After all, gas is a formless substance. Therefore, the atmosphere is considered to be the area in which gas and the planet rotate as a whole.

Atmosphere layers

The atmosphere that surrounds our planetmulti-layered. It is like an egg, in which white surrounds the yolk. Layers, or parts of the atmosphere, have a different thickness, and are at different distances. Let's take a look at them.

Troposphere. This is the "kitchen of the weather." Its thickness is about 15 km. Here, without a stop, everything moves, warm and cold air flows are mixed, thus forming clouds, fogs, clouds.

parts of the atmosphere

Стратосфера.In this layer, 25–30 km thick, in its upper part, ozone accumulates. This layer of gas, the thickness of which is very small, is vital for the Earth. But the ozone layer is constantly destroyed due to the entry into the atmosphere of various unwanted chemicals.

Mesosphere. This ball starts from a height of 50–55 km, which is about 80 km above the ground. In this place, the temperature rises with an increase in the height of the rise.

Thermosphere, or nanosphere, - bottomless spacesionized gas. In these places, the air under the action of rays from space is very rarefied, has a high electrical conductivity. It is in these high atmospheric layers that auroras appear.

Chemical composition

Answering the question about what the atmosphere is,it is impossible not to take into account its composition. So, it consists of a mixture of 10 different gases, among which the largest amount of nitrogen (78%), followed by oxygen (21%). Remains 1%, and here the key place is reserved for argon, a small fraction of carbon dioxide, neon and helium.

gas atmosphere
Газовая атмосфера – это инертные химические elements, and they do not react with other chemicals. And a very tiny fraction of the atmosphere falls on sulfur dioxide, carbon monoxide, ammonia, ozone (a gas related to oxygen), and water vapor.

In addition to these substances, in the atomic sphere there are also foreign substances: particles of smoke, gaseous pollution, dust, salt, and volcanic ash.

Pollution

Along with the question of what is the atmosphereEarth, is also relevant and the problem of pollution of our "air coat". The main sources of pollution are enterprises of the fuel and energy complex, manufacturing, and modern transport. Of all the harmful substances, 80% are emissions of sulfur dioxide, hydrocarbons, carbon oxides, solids and nitrogen. Often people do not realize what the atmosphere is and how important it is for the life of our entire planet. We are used to the fact that the air is simply there, and we are inclined to use the air envelope as we please.