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What two gases comprise most of the earth’s atmosphere?

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Question added by Abdelrahman Ahmed Ali Abdelrahman , Mudlogger , PetroServices LLC.- Oman
Date Posted: 2013/10/04
علي احمد علي
by علي احمد علي , Accountant , Accountant

dont give up hope whatever

N2 (78 %) and O2 (21%)  

 

Mahmoud Mohammed Salem Mahmoud
by Mahmoud Mohammed Salem Mahmoud , جيولوجي , هيئة المواد النووية المصرية

d

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