what happens if there is no O2 in our planet ?
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1
Explanation:
The air pressure on the earth would drop 21 per cent and our ears would not get enough time to settle. Without oxygen, there would not any fire and the combustion process in our vehicles would stop. ... In between all this, the earth's crust, which is made up of 45 per cent oxygen, would completely crumble.
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2
Answer:
we will get fossil of human after some time
Explanation:
bcuz we need o2 to live and no o2 means no trees no trees means no animals non of any living thing
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