the major constituents of earth's atmosphere are
Nitrogen
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Section::::Abstract.
Atmosphere of Earth
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Oxygen
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Section::::Evolution of Earth's atmosphere.:Second atmosphere.

Atmosphere of Earth
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Argon
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Section::::Abstract.
Atmosphere of Earth
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Carbon dioxide
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Section::::Abstract.
Atmosphere of Earth
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Neon
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Section::::Composition.

Atmosphere of Earth
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Helium
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Section::::Composition.

Atmosphere of Earth
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Methane
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Section::::Composition.

Atmosphere of Earth
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Water vapor
-1
Section::::Composition.

Atmosphere of Earth
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