Air is a mixture of many types of gases such as nitrogen, oxygen, carbon dioxide, water vapor, other gases and dust. Oxygen is taken during inhalation and used to dissolve glucose to obtain energy for various life processes. As a result, carbon dioxide is released by inhalation; It is used by plants for photosynthesis (the formation of glucose in the presence of sunlight).
Major gases found in the atmosphere
The rotation of the major gases found in the atmosphere is given below-
- carbon cycle
- Oxygen cycle
- Carbon dioxide oxide cycle
1. Carbon cycle -
- The carbon element in the atmosphere exists as a carbon-dioxide oxide gas. The source of carbon of all organisms is the atmosphere.
- Green plants get carbon dioxide from the atmosphere. Which are used for making food through sunlight. Which is called photosynthesis. By this action, plants prepare 'carbohydrate' as food. The carbohydrates produced by them are used by organisms for their food.
- On Earth, the carbon dioxide oxide gas dissolves in the reservoirs and collects as lime deposits. After decomposition of limestone, carbon-dioxide is reabsorbed into the atmosphere. This process is called carbonization. In this way, carbon dioxide is exchanged between the atmosphere and the Earth's reservoirs.
- The carbon-di-oxide gas produced by the burning of fossil fuels such as coal, petroleum, natural gas, by the respiration of plants and animals, by the decomposition of plants and animals, goes back into the atmosphere. In this way, the process of carbon dioxide coming from the atmosphere and back to the atmosphere again from the ground goes on continuously and there is a balance between the carbon and the biosphere.
2. Oxygen cycle -
- Oxygen gas is about 21% in the atmosphere and all organisms use oxygen present in the atmosphere for respiration.
- Oxygen is necessary for the burning of wood, coal, petroleum, gas etc. as fuel and carbon-dioxide gas is produced after its burning.
- Plants are the main source of oxygen in the atmosphere. The more trees and plants, the more oxygen will be available.
- The oxygen produced by photosynthesis in green trees and plants goes back into the atmosphere. Thus the process of oxygen cycle continues.
3. Nitrogen cycle -
Nitrogen is an essential element of every life. 78% nitrogen gas is found in the atmosphere. The major sources of nitrogen are nitrates present in the soil. Nitrogen from the atmosphere enters biological components through atmospheric and industrial processes. These nitrogen compounds (food chains) from plants are transferred to animals through food. The process of converting the nitrogen gas in the atmosphere to a nitrogen compound is called nitrogen fixation. Decomposition occurs by bacteria when plants and plants dry up and animals die. This creates nitrogen gas which then goes back into the atmosphere. In this way the cyclic process of nitrogen gas is completed.
