Chemistry, 22.07.2019 16:30 haileysolis5

Almost 99% of earths atmosphere is made up of two gases. what are the two gases and the percents of each? a) 21% oxygen and 78% nitrogen b) 21% water vapor and 78% oxygen c) 21% nitrogen and 78% oxygen d) 21% carbon dioxide and 78% oxygen pls

Almost 99% of earths atmosphere is made up of two gases. what are the two gases and the percents of

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Almost 99% of earths atmosphere is made up of two gases. what are the two gases and the percents of...