Essay on Necessity of air
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.Air is essential for all living organisms. Without air, all living organisms directly and indirectly in need of it would be extinct. The existence of many scientific objects would be ineffective since air is matter and it has weight and mass. Its composition makes it extensively valuable in our daily lives. While looking at the role of air in our life, it is first of all necessary to understand its different components: nitrogen, oxygen, carbon dioxide, noble gases, and water. Each of these is relevant in its own way and this article will detail their roles as elements that make up air
chand36:
sorry for giving big ans ,,,u can choose main points which u like andu can learn it..
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Answer:Air means oxygen. Oxygen is a supporter of combustion.
Experiment:
Take a candle of less height. Cover it with a inverted glass or container so that no air (oxygen) enters the container. After few second when all the air (oxygen) already present inside the glass is consumed, then there is deficiency of oxygen and hence the flame of candle extinguishes.
This shows that air (oxygen) is necessary for burning.
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