today: 0.04% CO2
21% O2
78% nitrogen
0.01% other
Before: exactly the same.
Well the gasses help the atmosphere by protecting it also they are in your natural air today
it has almost doubled!
Approximately 78% of the Earth's atmosphere is composed of nitrogen.
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.
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%.
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.
All gases we know 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.
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.
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.
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.
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.