Explain briefly about of computer composition of air
Answers
The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation).
By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.[8] Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air content and atmospheric pressure vary at different layers, and air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only in Earth's troposphere and in artificial atmospheres.
Answer:
Though we know air is essential for breathing, but have we ever given it a serious thought? Have you wondered what is it that makes the air so important and why is it important to preserve the environment? What effect will it have on our health if we allow air pollution to grow? What is the composition of air? Let us know more.
Suggested Videos
Is Air Everywhere
Discovery of oxygen
Role of Atmosphere
Composition of Air
We often take air as a single unit. In reality, air is composed of several gases. The composition of air consists of three key components of air, namely Nitrogen (78%), Oxygen (21%), Argon (1%), Carbon-di-oxide (0.03%) and water vapor. Air also has some other gases but they are in very minute percentage.
It is also important to understand that the composition stated above is the ideal composition of air, which maintains the fine balance in nature. In places where this composition of air varies, the atmospheric balance of nature may be tilted. For instance, in an industrial area, the composition of air can differ drastically. There may be a high quantity of harmful gases emitted from the industrial chimneys that can increase the amount of carbon-dioxide in the air, making it harmful to anyone who breathes such air.