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today: 0.04% CO2

21% O2

78% nitrogen

0.01% other

Before: exactly the same.

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14y ago

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Related Questions

What is the importance of gases present in atmosphere?

Well the gasses help the atmosphere by protecting it also they are in your natural air today


How does the amount of carbon in the atmosphere today compare today to the amount in 1750?

it has almost doubled!


What percentage of nitrogen is in the air today?

Approximately 78% of the Earth's atmosphere is composed of nitrogen.


Why is the percentage of argon in the earths atmosphere today the same as it was in the earths early atmosphere?

Argon is a noble gas and does not react with other elements in the atmosphere, so it has remained relatively constant over time. The initial percentage of argon in the Earth's atmosphere was likely determined by the gases present during the planet's formation. The lack of significant processes that remove or add argon to the atmosphere has helped to maintain its percentage over time.


How much percent oxygen present in your atmosphere?

the percentage of oxygen in the atmosphere today is about 20.95%. Or... if you round it you get the most common answer of 21%.


Why is it not possible for hydrogen to be in the atmosphere?

It IS possible for hydrogen to be in the atmosphere since we find it there today. Hydrogen is lighter than any other gas, so it of all the gasses in the atmosphere is most readily able to be lost to space. It also combines readily with oxygen to form water, and forms other compounds. However, a small amount of H2 gas does exist in the earth's atmosphere.


What gasses existed after the big bang?

All gases we know today


Why is there only a small percentage of water vapour in the atmosphere today?

The amount of water vapor in the atmosphere can vary based on temperature, air pressure, and geography. Today, the percentage of water vapor may be small due to factors like low humidity, dry air masses, or lack of recent rainfall reducing the amount of water entering the atmosphere.


Today's atmosphere is full of nitrogen and oxygen These are?

the two most abundant gases in Earth's atmosphere, with nitrogen making up around 78% and oxygen around 21%. Nitrogen is important for plant growth and the nitrogen cycle, while oxygen is essential for respiration and the survival of many organisms.


How did the primitive atmosphere differ from the atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.


How did the primitive atmosphere differ from atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.


How the did primitive atmosphere differ from your atmosphere today?

As opposed to today's atmosphere, the Earth's early atmosphere would have been quite impossible for human life to thrive in. Today the atmosphere consists primarily of Nitrogen, Oxygen, and Carbon Dioxide, but early Earth's first atmosphere was probably made of Hydrogen and Helium.