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Nitrogen makes up about 80% of the Earth's atmosphere.

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10y ago

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Which of the following gases has the greatest percentage in the formation of atmosphere?

Nitrogen


How the percentage of nitrogen in the atmosphere remains more or less constant?

The percentage of nitrogen in the atmosphere remains relatively constant due to a balance between nitrogen fixation and denitrification processes. Nitrogen fixation, performed by certain bacteria and industrial processes, converts atmospheric nitrogen into forms usable by living organisms. Conversely, denitrification processes return nitrogen to the atmosphere by converting nitrates back into nitrogen gas. This continuous cycle keeps nitrogen levels stable, despite various biological and geological activities.


Why did the percentage of nitrogen slowly increased when the atmosphere was formed?

The percentage of nitrogen in the atmosphere increased over time primarily due to volcanic outgassing and the release of nitrogen compounds from Earth's interior. As the planet cooled, these gases, including nitrogen, accumulated in the atmosphere. Additionally, nitrogen is relatively inert and does not easily react with other elements, allowing it to build up as other gases, like carbon dioxide and water vapor, were removed or transformed through processes like photosynthesis. Over geological timescales, this led to nitrogen becoming the dominant gas in the modern atmosphere.


What is the percentage of the atmosphere made up of oxygen?

The percentage of oxygen in the atmosphere is approximately 21%. Nitrogen makes up 78% and the last 2% percent is a mixture of various different gases, mostly argon.


What percentage of hydrogen is in the atmosphere?

Hydrogen makes up about 0.000055% of Earth's atmosphere. It is much less abundant compared to other gases like nitrogen and oxygen.