Cyclic Process of the Atmospheric Gases Part-2

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Cyclic Process of the Atmospheric Gases

The cycle of main gases found in the atmosphere is discussed below:

Carbon Cycle

The element of carbon is present in the atmosphere in the form of carbon dioxide. The source of carbon for all living beings is the atmosphere. Green plants receive carbon dioxide from the atmosphere which is used for making food with the help of the sunlight. This is known as photosynthesis. By this process, plants create carbohydrates in the form of food. Carbohydrates thus, produced by the plants are used as food by all living beings. Carbon dioxide gets dissolved in the water bodies and gets collected in the form of lime on the earth. After dissolution of limestone, carbon dioxide again reaches the atmosphere. This process is known as carbonization. In this way, carbon dioxide goes on moving between atmosphere and waterbodies of the earth. Carbon dioxide produced by breathing of plants and animals, disintegration of plants and animals and by burning fossil fuels like coal, petroleum, and natural gas again returns back to the atmosphere. In this way, the process of receiving carbon dioxide from the atmosphere and going back to it from the surface of the earth keeps on going continuously.

Carbon Cycle

Carbon Cycle

Carbon Cycle

Oxygen Cycle

The total amount of oxygen in the atmosphere is about 21%. All living beings use oxygen present in the atmosphere for breathing. For the burning of fuels like wood, coal, and gas, oxygen is essential and carbon dioxide gas is produced by their burning. The main sources of oxygen in the atmosphere are plants and trees. Higher the number of trees and plants, more will be the availability of oxygen. Oxygen produced through the process of photosynthesis by green plants goes back to the atmosphere. In this way the process of oxygen cycle goes on continuously.

Image of Oxygen Cycle

Image of Oxygen Cycle

Image of Oxygen Cycle

Nitrogen Cycle

Nitrogen is an important element for life. The total amount of nitrogen gas in the atmosphere is 78%. The main source of nitrogen are nitrates present in the soil. From the atmosphere, nitrogen enters into bio-components through biological and industrial processes. Nitrogen compounds from the plants are transferred to animals through food chain. The process of transformation of nitrogen gas of the atmosphere into nitrogen components is known as nitrogen fixation. The bacterial activities decompose the dried plants and dead animals. It produces nitrogen gas which goes back into the atmosphere. In this way the cycle of nitrogen gas is completed.

Image of Nitrogen Cycle

Image of Nitrogen Cycle

Image of Nitrogen Cycle

In Brief, It Can Be Said That:

The atmosphere is made up of different kinds of gases which surrounds the earth. Two important gases are nitrogen and oxygen which together form 99% part of the atmosphere. The atmosphere is composed of troposphere, stratosphere, mesosphere, ionosphere, and exosphere. All weather-related incidents take place in the troposphere whereas stratosphere is considered to be ideal for flying of the aeroplanes. Radio waves are reflected back on the earth from the ionosphere. This has made possible the radio broadcast.

The element of carbon in the atmosphere is found in the form of carbon dioxide gas. The main sources of carbon are petroleum, wood, coal, and gases. The main sources of oxygen in the atmosphere are plants and trees. Oxygen is very important for breathing and for the burning of fuels. The main source of nitrogen for plants is nitrates present in the soil. Nitrogen gas is produced by decomposition of plants and animals and goes back to the atmosphere.

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