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nitrogen: 78%

oxygen: 21%

trace gases: 1%

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Which planet's atmosphere is 78 percent nitrogen?

The Earth has an atmosphere of 78% nitrogen (and 21% oxygen).


What two elements comprise 99 percent of the volume of the Earth's atmosphere?

Earth's atmosphere is roughly 78% Nitrogen & 21% Oxygen.


What is over 99 percent of the atmosphere in pure dry air composed of?

Over 99 percent of the atmosphere in pure dry air is composed of nitrogen and oxygen, with nitrogen making up about 78 percent and oxygen around 21 percent. The remaining 1 percent is made up of trace gases such as argon, carbon dioxide, and neon.


What 99 percent of the atmosphere is made up of either oxygen or .?

nitrogen


Is 21 percent of the earth's atmosphere nitrogen?

No, 21% of Earth's atmosphere is oxygen. Nitrogen makes up 78%.


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 is the earth atmosphere 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 makes up 20 percent of the earths atmosphere?

balls


What percent of O and N can you find in the atmosphere?

78% Nitrogen 21% Oxygen


The most abundant gas in the atmosphere is oxygen?

Nitrogen (N2) is the most abundant gas in the Earth's atmosphere having percent volume of 78.8 compare to Oxygen 20.95 %, which falls on the second place after Nitrogen.


Which two gases make up 99 percent of the gases in the atmosphere which gas is more abundant?

I am looking for the exact same answer I know one of the gases should be oxygen


Is 80 percent of earth's atmosphere oxygen?

No, oxygen makes up about 21% of Earth's atmosphere. The majority of the atmosphere is made up of nitrogen (roughly 78%).