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

nitrogen
oxygen
helium
carbon dioxide

User Tzortzik
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Almost 79% of the earth’s atmosphere is composed of nitrogen
User Online Thomas
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It is nitrogen. It is actually around 78%. 21% oxygen as well.
User Slashingweapon
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Almost 79% of the earth’s atmosphere is composed of ____________. a. nitrogen b. oxygen c. helium d. carbon dioxide
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