Nitrogen (N2) and oxygen (O2) are the most abundant gases in the atmosphere at 78% and 21% respectively. (78.08% Nitrogen, 20.95% Oxygen)
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Nitrogen is important because it is a building block for life, as it is contained in amino acids and proteins.
Oxygen is important because most living organisms need it to breathe. It also is necessary for burning.
Ozone (O3) is a small component of the lower atmosphere, but is more abundant at higher altitudes. It is important because it protects life by absorbing ultraviolet radiation from the Sun. This also helps to keep Earth from getting too hot.
Water vapor (H2O) and carbon dioxide (CO2) are also present in small amounts in the atmosphere. These gases are important because they absorb heat given off by the Earth's surface. This heat absorption is largely responsible for heating the atmosphere. Without carbon dioxide and water vapor, the Earth's atmosphere would be much colder than it is.
Oxygen
21%
The atmosphere of the Earth is composed of different gases. Some of these gases include nitrogen, oxygen, argon, and carbon dioxide.
There are so many gases in the atmosphere. The most prominent is one of the minority gases which is the carbon dioxide.
the atmosphere is made of carbon dioxide and other gases e.g. oxygen and carbon dioxide
It makes up the majority of the molten core of the earth.
Nitrogen and Oxygen
Nitrogen & oxygen.
Nitrogen and oxygen, respectively, are the two most abundant gases in the earth's atmosphere.
Nitrogen and Oxygen
Hydrogen, Nitrogen, Oxygen
on ancient Earth, nitrogen, water vapor, carbon dioxide, and methane were probably the most abundant gases in the atmosphere.
The most abundant gases are nitrogen and oxygen in the Earth atmosphere.
The Abundant gases are Nitrogen, Helium, and other gases in the Secondary Atmosphere.
Nitrogen N2 78.08% Oxygen O2 20.95%
Helium is the most abundant of the Noble gases in the universe.
Most abundant - Water Vapor
Nitrogen
There are many gases in the atmosphere. The two most common gases found in the atmosphere however, are nitrogen and oxygen.