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The atmosphere is primarily composed of Nitrogen (N2), which accounts for 78%. Oxygen follows, accounting for 20% of its volume, with argon less than 1%. The remainder is composed of particulates and trace gases, including water vapor.

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13y ago
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14y ago

The approximate percentage of gases in earth's atmosphere are 78% nitrogen, 21% oxygen, 0.9% argon, 0.03% carbon dioxide, and trace amounts (less than 0.01% each) of hydrogen, ozone, methane, carbon monoxide, helium, neon, krypton, and xenon.

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14y ago

There is a very thin layer of atmosphere consisting of methane, nitrogen and carbon monoxide during the time when Pluto is closest to the sun. As it travels away from the sun the atmosphere refreezes as ice on the ground.

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12y ago

The greatest Green House gas is water vapor which can make up to 5% of our atmosphere and up to 75% of the forcing.

The second gas is Carbon Dioxide which makes up 0.037% of our atmosphere and contributes about 10%.

The rest of the gases are extreme trace elements and make up the remaining amount.

The level of forcing on our environment is not on the volume, but the forcing affect.
space

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13y ago

I don't know the exact amount because it is always rising but believe there is about a couple hundred tons

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9y ago

Pluto is a dwarf planet, and the ninth planet our solar system. Its composition is mainly rock and Ice water. It is believed to only be about 30% water.

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12y ago

78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, 1% water and ozone, nitrogen oxides, methane, sulphur dioxide and trace gases make up the rest

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10y ago

Only 0.00017% of the earths atmosphere is Methane.

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13y ago

I will assume that it is in air.

79% Nitrogen

20% Oxygen

1% Noble gases

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13y ago

According to Wikipedia, the average mole concentration of methane at the Earth's surface in 1998 was 1,745 ppb, which corresponds to 0.0001745%.

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Q: What percentage of methane makes up the atmosphere?
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