The components of the Earth’s atmosphere and the importance of them

Do you know what is the Earth’s atmosphere? The Earth’s atmosphere is composed of a mixture of the different gases that make life on the Earth possible.

The components of the atmosphere

The atmosphere is composed of oxygen gas, water vapour, nitrogen gas, carbon dioxide gas, and the other gases that occupy 0.97 % of the air volume.

Oxygen gas

It is a very important gas that represents 21 % of the air volume, The photosynthesis process in the green plants is the main source of oxygen gas on the Earth.

What is the importance of the oxygen gas

Oxygen gas is very important and necessary for the respiration process, and burning of the fuel, Oxygen gas helps the divers in the respiration process under the water surface, We use oxygen gas with acetylene in cutting and welding of the metals.

Oxygen in diving

Oxygen in diving

Carbon dioxide gas 

Carbon dioxide gas represents about  0.03 % of the volume of the atmosphere, We can use the lime water to test the presence of carbon dioxide gas.

The importance of carbon dioxide gas

We use carbon dioxide gas in making the soda water, We use it to make fire extinguishing equipment as carbon dioxide gas does not burn and does not help in burning, We can use it in the photosynthesis process, the green plants take carbon dioxide gas and give out oxygen gas.

Carbon dioxide gas
In the photosynthesis process, The plants take carbon dioxide gas and release oxygen gas to make their own food.
Nitrogen gas 

It is the most abundant gas in the air, It is 78 % of the volume of the atmosphere.

The importance of nitrogen gas 

In the combustion process, Nitrogen gas reduces the effect of oxygen gas, We use it in the industry of the ammonia and some nitrogenous fertilizers.

The water vapour  

 It is found in a small ratio in the atmosphere, the humidity increases in the coastal regions, It depends on the amount of the water vapour that represents in the air. 

The importance and uses of nitrogen gas

The importance and uses of carbon dioxide gas

The importance and uses of oxygen gas in our life

What are the sources of carbon dioxide gas?

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