22. How will you show that air is necessary for burning?
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In order to burn this , oxygen is needed, as it is with any fire. The waste products from the combustion process are water and carbon dioxide. Thus, we breathe because oxygen is needed to burn the fuel (sugars and fatty acids) in our cells to produce energy The air we breathe contains about 21% oxygen.
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Air is essential for burning fuels as oxygen is an essential component for burning or combustion process and oxygen is composed in the air so air is essential for burning fuels
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