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If there will be 78% of oxygen and 21% nitrogen, the whole world will come to an end. It will burn. The fire once set off would not could not stop due to excess of oxygen and lack of nitrogen as oxygen is a supporter of combustion and nitrogen is a non-supporter
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thanks, yours as well :)
u're welcome
The results  would be very dangerous.. As we know oxygen supports burning or combustion .. so great amount of oxygen will burn the world..
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