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Nitrogen, 78% and Oxygen, 21%. There is about 1% of Argon, and trace amounts of other gases.

As this question is in the "Global Warming" section, let me add that these gases are relatively thermodynamically inert. So comparing heat trapping gases against them makes no more sense than comparing the weight of the atmosphere to the weight of earth's oceans.

Our concern is whether the abundance of greenhouse gas in our atmosphere is growing (it is), why that is occurring (human consumption of fossil fuels), and what we ought to do about it--either nothing, if we don't fear the consequences, or considered efforts towards reducing GHG emissions.

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11y ago
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9y ago

The atmosphere near the earth's surface is Troposphere. It has various breathable gases in it.

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11y ago

Carbon dioxide (CO2).

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nitrogen oxygen

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7y ago

diatomic nitrogen (N2)

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Q: What is the chief gas in the earth atmosphere?
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Related questions

Which is the chief gas of atmosphere?

The atmosphere of Earth is roughly 78% made of nitrogen.


The atmosphere of earth is an example of?

The atmosphere of the Earth is an example of a gas-gas solution.


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The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere


How does the composition of earth's atmosphere differ from the composition of the atmosphere of the gas giant planets?

The Gas Giants have a deep gas atmosphere and earth have a not so deep atmosphere


Is Earth atmosphere abundant in gas?

The Earth atmosphere is formed from gases.


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The most abundant element in earth's first atmosphere is nitrogen. This is a gas which makes 78% of the earth's atmosphere.


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There is a bit of confusion here. The Main gas of the atmosphere of Venus, carbon dioxide, is also the main gas of the atmosphere of Mars. This gas is a minor component of Earth's atmosphere.


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If by gas you mean an atmosphere, there are no planets with an atmosphere anywhere similar to Earth.


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The most abundant gas in the Earth's atmosphere is nitrogen.


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