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The earliest Earth atmosphere would have been comprised mostly of Hydrogen and some Helium. After this, it was dominated by Nitrogen and Carbon Dioxide until The Great Oxidation Event, when Oxygen became the second most common gas as it is today.
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∙ 10y ago
Wiki User
∙ 11y agoNitrogen - 78.084%
Oxygen - 20.95%
Argon - 0.934%
Carbon Dioxide - 0.036%
Neon - 0.0018%
Helium - 0.0005%
Methane - 0.00017%
Hydrogen - 0.00005%
Nitrous Oxide - 0.00003%
Ozone - 0.000004%
Wiki User
∙ 7y agoThe atmosphere of dry (i.e. not including water vapor) earth atmospheric air is approximately:
78.084% Nitrogen
20.946% Oxygen
0.9340% Argon
0.0407% Carbon Dioxide
0.001818% Neon
0.000524% Helium
0.00018% Methane
0.000114% Krypton
0.000056% Hydrogen
Water vapor ranges from essentially 0% in the most arid regions like the South Pole to around 30% in the hottest, most humid areas.
Wiki User
∙ 8y agoIts thought to been made up of mostly water vapor and carbon dioxide, with small amounts of other gases, but no free oxygen.
NITROGEN
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∙ 13y agoWiki User
∙ 11y agogases that make up most of earths atmosphere is nitrogen, water vapor and helium.
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∙ 12y agoOxygen, carbon dioxide, methane, & other greenhouse gases were in the atmosphere from the intense heat & everything burning.
Wiki User
∙ 11y agodissolved in salty ocean water
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Which gases made up most of Earths early atmosphere?
mostly carbon dioxide with little or no oxygen.
Why does the atmosphere have layers?
because they are made up of gases and the gases protect the earths life forms.
What are atmosphere gases?
atmosphere gases are made of air
What gases made up Earths second atmosphere?
a comit zoomed past our eath, the comets tail left behind gasses in our atmosphere thuse forming the continents
What are two elements that made up most of the early atmosphere?
Nitrogen (78%) and oxygen (21%) are the two most common gases in the atmosphere.
Which gases made up most of Earths early atmosphere?
mostly carbon dioxide with little or no oxygen.
Why does the atmosphere have layers?
because they are made up of gases and the gases protect the earths life forms.
Was the earths early atmosphere made up of mostly oxygen?
no
What is Earths atmosphere is made up of what?
Earth's atmosphere is mostly made up of nitrogen, which makes up 79 percent. The atmosphere contains 20 percent oxygen and 1 percent other gases.
What are atmosphere gases?
atmosphere gases are made of air
Is Mars made of gases?
Mars is an inner terrestrial rocky planet. Though there is an atmosphere is is very thin compare to the earths.
What the Earth's atmosphere made of?
What is the earths atmosphere made of
What is the earths amosphere?
Earth's atmosphere is made up of gases surrounding the planet, retained by gravity. The atmosphere contains nitrogen, oxygen, argon, carbon dioxide and other gases in small amounts as well as water vapor.
What 3 gases made up the earths atmosphere a lot of years ago?
carbon dioxide, sulphur dioxide and still nitrogen
What is the earths mostly made up of?
Earth's atmosphere is mostly made up of nitrogen, which makes up 79 percent. The atmosphere contains 20 percent oxygen and 1 percent other gases.
What gases made up Earths second atmosphere?
a comit zoomed past our eath, the comets tail left behind gasses in our atmosphere thuse forming the continents
What are two elements that made up most of the early atmosphere?
Nitrogen (78%) and oxygen (21%) are the two most common gases in the atmosphere.
