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What percentage of the Earth's atmosphere is composed of oxygen?
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Approximately 20 percent of the earths atmosphere is composed of?
oxygen
Percentage of oxygen in earths lower atmosphere?
what atmosphere is 75 km away from earth
What planet has a nitrogen- oxygen atmosphere?
Earths atmosphere is rich in Oxygen, some 21% of the air is Oxygen. There is oxygen on other planets, but the percentage comes nowhere close to this. The percentage of Oxygen in earths atmosphere is thought to have been much higher in the past, before animals were about, but after the arrival of plants.
What effects does oxygen have on the earths atmosphere?
Without its oxygen content the Earth's atmosphere would be composed almost entirely of nitrogen and would be chemically inert; oxygen causes the atmosphere to be chemically active (and breathable by humans).
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%.
Approximately 20 percent of the earths atmosphere is composed of?
oxygen
Percentage of oxygen in earths lower atmosphere?
what atmosphere is 75 km away from earth
What planet has a nitrogen- oxygen atmosphere?
Earths atmosphere is rich in Oxygen, some 21% of the air is Oxygen. There is oxygen on other planets, but the percentage comes nowhere close to this. The percentage of Oxygen in earths atmosphere is thought to have been much higher in the past, before animals were about, but after the arrival of plants.
What effects does oxygen have on the earths atmosphere?
Without its oxygen content the Earth's atmosphere would be composed almost entirely of nitrogen and would be chemically inert; oxygen causes the atmosphere to be chemically active (and breathable by humans).
The atmosphere is composed of?
Nitrogen,Oxygen,Carbon Dioxide And The rest of the percentage is other gases
20of earths atmosphere is composed of?
nitrogen,oxygen,carbon dioxide,argon, and other gases in small amounts
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 is the percentage of Oxygen on earth?
Earth contains 21 percent of oxygen in the atmosphere!coz earth contains only hot gases and oxygen is not a hot gas!:D
If Earths biosphere were younger we would have oxygen in the atmosphere?
Earths atmosphere dose have oxygen in it, without it we would all be dead we require oxygen to breathe.
How much of the earths atmosphere is made up of nitrogen and oxygen?
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
How did bacteria change early earths atmosphere?
Earth's early atmosphere was primarily composed of carbon dioxide. Early bacteria used carbon dioxide as a source of fuel and as a result produced oxygen.
What gas make up the largest percentage of the atmosphere?
Nitrogen Gas makes up about 80% of Earths atmosphere with Oxygen making up most of the rest (20%).
