Str2onpadomistina Str2onpadomistina

31-01-2016
Biology

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Almost 79% of the earth’s atmosphere is composed of ____________.
nitrogen
oxygen
helium
carbon dioxide

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soorvora soorvora

31-01-2016

It is nitrogen. It is actually around 78%. 21% oxygen as well.

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Аноним Аноним

31-01-2016

Almost 79% of the earth’s atmosphere is composed of nitrogen

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