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Study the composition of air shown in the picture and answer the following questions1. Which gas is the major component of air?2. What is the percentage of gas is present in air which is required for our breathing?3. What is the normal percentage of carbon dioxide in air?4. Which is the least component present in air? |
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Answer» 1. Nitrogen ( 78% ) 2. Oxygen (21%) 3. 0.04% 4. Carbon dioxide |
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