Most gases in the atmosphere are found in the troposphere, which is the lowest layer of Earth's atmosphere, extending from the surface up to about 8 to 15 kilometers (5 to 9 miles) high. This layer contains roughly 75% of the atmosphere's mass and is where weather phenomena occur. Key gases such as nitrogen (78%) and oxygen (21%) are most concentrated in this region. Higher layers, like the stratosphere and mesosphere, have much lower densities of gases.
78% Nitrogen,and 21% Oxygen
The 3 important gasses (there are more) are:-NitrogenOxygenCarbon Dioxide
Most gases in the atmosphere are found in the troposphere, which is the lowest layer, extending from the Earth's surface up to about 8 to 15 kilometers (5 to 9 miles) high. This layer contains approximately 75% of the atmosphere's mass and is where weather phenomena occur, as well as where most of the water vapor is located. Above the troposphere lies the stratosphere, which contains the ozone layer but has significantly less water vapor.
air and gasses and for some no atmosphere
The atmosphere is composed of approximatly 79% Nitrogen - 20% Oxygen - 1% Argon and 'other gasses'
The two most common gases found in Earth's atmosphere are nitrogen (N2) and oxygen (O2). Nitrogen makes up about 78% of the atmosphere, while oxygen makes up about 21%.
Nitrogen and oxygen.
Noble gases can be found in the atmosphere; the air on Earth is partly composed of the noble gasses.
Atmosphere. It is a mixture of gasses that surrounds the earth.
The noble gasses are found in the right-most column (group 18) on the period table.
Nitrogen and oxygen.
Very, very little, as Mercury's atmosphere is almost a vacuum only minute traces of gasses are found.
Noble gasses do not exist in large amounts in the earth's atmosphere. The noble gases in total sum up to less than 1% of the gasses in the earth's atmosphere.
gravity
The atmosphere (air).
No. The atmosphere is a mixture of different gasses.
About 78% of it is nitrogen. Another 21% of the atmosphere is oxygen, and 1% are other gasses found in very small amounts.