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Nitrogen and oxygen together make up approximately 99% of Earth's atmosphere, with nitrogen accounting for about 78% and oxygen around 21%.

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1y ago

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What percentage of air is made of nitrogen and oxygen together?

Nitrogen makes up about 78% of Earth's atmosphere, while oxygen makes up about 21%. Therefore, nitrogen and oxygen together make up approximately 99% of the air we breathe.


The highest percentage in the atmosphere is of?

The highest percentage in the Earth's atmosphere is nitrogen, at 78%. Then oxygen(21%) and CO2, 0.9%.


Together oxygen and nitrogen compose what percentage of the Earth's atmosphere?

Oxygen makes up about 21% and nitrogen makes up about 78% of the Earth's atmosphere, adding up to a total of approximately 99%.


What two components make up the percentage of the atmosphere?

nitrogen and oxygen


What components make up the greatest percentage of the atmosphere?

nitrogen and oxygen


Which two gases make up the largest percentage of the atmosphere?

Nitrogen and oxygen make up the largest percentage of the atmosphere.


What two components make up the greatest percentage of the earths atmosphere?

Nitrogen and oxygen make up about 99% of the Earth's atmosphere. Nitrogen accounts for about 78% and oxygen for about 21%.


Which layer of the atmosphere to nitrogen and oxygen together make up?

the ozone


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 are the two main atmosphereic gases and what is the approximate percentage of each one in the atmosphere?

The two main atmospheric gases are nitrogen and oxygen. The approximate percentage for nitrogen is 78% and oxygen's approximate percentage is 21%.


What are the two main atmospheric gases and what is the approximate percentage of each one in the atmosphere?

The two main atmospheric gases are nitrogen and oxygen. The approximate percentage for nitrogen is 78% and oxygen's approximate percentage is 21%.


The atmosphere is composed of?

Nitrogen,Oxygen,Carbon Dioxide And The rest of the percentage is other gases