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What percentage of the Earth's atmosphere is composed of oxygen?
About 21% of the Earth's atmosphere is composed of oxygen.
What percentage of oxygen is present in the Earth's atmosphere?
About 21 of the Earth's atmosphere is made up of oxygen.
What is the approximate percentage of oxygen in the atmosphere?
Earth's atmosphere is about 21% oxygen by volume (for dry air).
What percentage of Earth's atmosphere does oxygen take up?
Oxygen makes up about 21% of Earth's atmosphere.
What is the percentage of oxygen in the Earth's atmosphere by mass?
The percentage of oxygen in the Earth's atmosphere by mass is approximately 21.
What is the proportion of oxygen in the atmosphere today?
About 21% of the Earth's atmosphere is oxygen.
Which gas forms 21 percent of the Earth's atmosphere?
Oxygen forms 21 percent of the Earth's atmosphere.
How did the oxygen in the atmosphere get there?
The oxygen in Earth's atmosphere has been generated, over geological time, by the plant life on Earth.
Does nitrogen dilute the oxygen in Earth's atmosphere?
No, nitrogen does not dilute the oxygen in Earth's atmosphere. Nitrogen and oxygen are the two main components of Earth's atmosphere, with nitrogen making up about 78% and oxygen about 21%. They coexist in the atmosphere without one diluting the other.
What is 21 percent of Earth's atmosphere composed of?
Oxygen is the primary component, making up about 21% of Earth's atmosphere.
What gas is 21 percent of the Earth's atmosphere?
Oxygen is the gas that makes up about 21 percent of the Earth's atmosphere.
The most abundant gases are nitrogen and?
The most abundant gases are nitrogen and oxygen in the Earth atmosphere.
