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Was the atmosphere of the earth always mostly nitrogen and oxygen?
Wiki User
∙ 14y ago
No, the Nitrogen in the air has probably always been there (because nitrogen is rather inert), but originally Earths atmosphere was reducing (it had no free Oxygen) and probably contained large amounts of CO2 and hydrocarbons. The present atmosphere on Earth is the product of biological processes which have slowly introduced free Oxygen into the Oceans and then the atmosphere - life made Earth habitable for life!
Wiki User
∙ 14y ago
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Does the atmosphere have more nitrogen or oxygen in it?
Nitrogen is more in the atmosphere. Around 78% of the atmosphere is nitrogen gas and 21% is oxygen gas.
Does titan have oxygen?
Not atmospheric oxygen. Titan's atmosphere is mostly nitrogen. Most other remaining portion is methane and hydrogen.
Why does the nitrogen level in the atmosphere is higher than the oxygen level?
Because due to the over pollution and cutting down the tree's level of Oxygen is decreasing .The level of Nitrogen always remains constant in the atmosphere . The level of Nitrogen doesn't' depend on the level of the Oxygen level.
What is more abundant in the atmosphere oxygen or Nitrogen?
Nitrogen
What is the most abundant gas in our atmosphere oxygen hydrogen nitrogen water?
It is nitrogen, followed by oxygen.
Is the atmosphere mostly oxygen?
No. About 79% is nitrogen.
Is earths atmosphere mostly oxygen and hydrogen?
No, Earth's atmosphere is mostly composed of nitrogen (about 78%) and oxygen (about 21%). Hydrogen makes up a very small fraction of Earth's atmosphere, less than 0.1%.
What describes the earths atmosphere?
mostly nitrogen with 21% oxygen
What was earth's first atmosphere was mostly a mixture of?
Nitrogen and oxygen.
What two gases are in the atmosphere on earth?
Mostly Nitrogen, and then Oxygen.
What best describes the atmosphere?
mostly nitrogen with 21% oxygen
Is the Earth's atmosphere an element?
No. Earth's atmosphere is a mixture, mostly comprised of nitrogen and oxygen.
Which planet has is atmosphere mostly made of nitrogen?
Neptune (NovaNet) There's something wrong here. Neptune is mainly a hydrogen atmosphere. Earth is the planet with a mainly nitrogen atmosphere, but the coldest is Neptune.
What best describes the earth's atmosphere?
mostly nitrogen with 21% oxygen
What two elements is earth's atmosphere mostly made up of?
The atmosphere is the mixture of gas molecules and other materials surrounding the earth. It is made mostly of the gases nitrogen (78%), and oxygen (21%).
Do Mars and earth have similar atmosphere?
No. Earth's atmosphere is made mostly of nitrogen and oxygen. The atmosphere of Mars is much thinner ans is made mostly of carbon dioxide.
Is it true that earth's atmosphere is composed of liquid oxygen?
The atmosphere of the Earth is a gas, not a liquid, and although it does contain oxygen, that is just one part of the atmosphere, which is mostly nitrogen.
