Air is a natural mix of gases thanks to which the person has an opportunity to breathe. It is necessary for normal existence of the majority of organisms.
Instruction
1. It is known that air is a mix of substances which basis is formed by nitrogen and oxygen. But very few people know that the chemical composition of air can significantly be changed, depending on location.
2. One of the main components of air is nitrogen which makes 78% of all volume. Nitrogen represents rather inert gas which under normal conditions has neither color, nor a smell. Interesting the fact that the most part of the terrestrial atmosphere consists of it.
3. The second important component of air is oxygen which contains in much smaller quantity, than nitrogen (only 21%). Contrary to general opinion that we breathe oxygen it is not the main component of air, and makes only its fourth part.
4. Also air always contains water vapor. Their quantity can change, depending on air temperature. The remained 1% includes the huge list of components. Air may contain inert gases, such as argon, neon, helium, xenon, the content of krypton and methane is also possible. Their quantity can fluctuate from thousand shares of percent to the tenth. Such divergence can be connected with a geographical location.
5. All these components are important components of air, and each of them bears the function. But besides the main components, in the course of breath the organism can receive huge amount of toxic and noxious to health agents. Recently it is often possible to find formaldehyde and phenol in air of apartments. Such connections appear there from behind various artificial coverings which are used for finishing of rooms. Also they can be allocated with furniture. Often it is possible to find even such substances as radon and asbestos which are deadly and cause chronic incurable diseases.
6. Air plays very important role in life of each person. This the most valuable that is in life of people. It is worth remembering that health depends on air quality therefore try to breathe the pure and oxygenated air. Especially it concerns children whose immunity did not get stronger yet and is most of all subject to infection. Now the majority of megalopolises suffers because of insufficient gardening for this reason can contain in their air inadmissible norms of substance. In the investigation of it, it is recommended to leave more often in planted more trees and shrubs places. In other words, clean air - guarantee of health and longevity of each person, also you should not forget about it.