lkanan98p0eg20 lkanan98p0eg20

Today at 10:19 AM
Biology

Answered

What makes up 21 percent of the earths atmosphere

Answer :

bossloveswag bossloveswag

Today at 10:25 AM

the answer is 21% oxygen,

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calliebmee1 calliebmee1

Today at 10:25 AM

21% oxygen.................................

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