The 2 most abundant gases in our atmosphere?
singleAnswer
nitrogen oxygen
Atmosphere of Earth
gases in our atmosphere? The 2 most abundant gases in our atmosphere?
Atmosphere of Earth Atmosphere Atmospheric escape Trace gas Greenhouse gas Atmospheric methane Greenhouse effect Carbon dioxide in Earth's atmosphere Atmospheric entry File talk:Atmosphere gas proportions.svg
The <b>atmosphere</b> of Earth is the layer of <b>gases</b>, commonly known as air, that 
surrounds the planet Earth and is retained by <b>Earth&#39;s</b> gravity. The <b>atmosphere</b> of&nbsp;... An <b>atmosphere</b> is a layer or a set of layers of <b>gases</b> surrounding a planet or other 
material body ... The current composition of the <b>Earth&#39;s atmosphere</b> is the product 
of billions of years of biochemical modification of the <b>paleoatmosphere</b> by&nbsp;... The objects are drawn to scale, and <b>their</b> data points are at the black dots in the 
middle. <b>Atmospheric</b> escape is the loss of planetary <b>atmospheric gases</b> to outer 
space. A number of&nbsp;... Trace <b>gases</b> are those <b>gases</b> in the <b>atmosphere</b> other than nitrogen (78.1%), 
oxygen (20.9%), ... Below is a chart of several trace <b>gases</b> including <b>their</b> 
abundances, <b>atmospheric</b> lifetimes, sources, and sinks. Trace <b>gases</b> – taken at 
pressure 1&nbsp;... The most common <b>gases in Earth&#39;s atmosphere</b> are nitrogen (78%), oxygen (21
%), and argon (0.9%). Methane in the <b>Earth&#39;s atmosphere</b> is a strong greenhouse <b>gas</b> with a global 
warming potential (GWP) 104 times&nbsp;... The greenhouse effect is the process by which radiation from a planet&#39;s 
<b>atmosphere</b> warms the planet&#39;s surface to a temperature above what it would be 
without this <b>atmosphere</b>. Radiatively active <b>gases</b> (i.e., greenhouse <b>gases</b>) in a 
planet&#39;s <b>atmosphere</b> ... In reality the <b>atmosphere</b> near the <b>Earth&#39;s</b> surface is 
largely opaque to thermal&nbsp;... Carbon dioxide (CO 2) is an important trace <b>gas in Earth&#39;s atmosphere</b>. It is an 
integral part of the carbon cycle, a biogeochemical cycle in which carbon is&nbsp;... Almost all aeronautical engineers are taught the perfect (ideal) <b>gas</b> model during 
<b>their</b> undergraduate education. Most of the&nbsp;... This graph is very misleading! N2 and O2 make up 99.024% of the <b>gases in our</b> 
<b>atmosphere</b>. The remaining gases comprise less than 1% -- 0.9761301%, to be&nbsp;...
Greenhouse gas Abundance of the chemical elements Argon Atmosphere of Mars Trace gas Helium Diatomic molecule Nitrogen Abundance of elements in Earth's crust Oxygen
The contribution of each <b>gas</b> to the greenhouse effect is determined by the 
characteristics of that <b>gas</b>, its <b>abundance</b>, and any ... in part due to its shorter 
<b>atmospheric</b> lifetime in the ... When ranked by <b>their</b> direct contribution to the 
greenhouse effect, the <b>most</b> important are:&nbsp;... The abundance of the chemical elements is a measure of the occurrence of the 
chemical ... Changing the given environment to Jupiter&#39;s outer <b>atmosphere</b>, 
where ... Remaining elements, making up only about <b>2</b>% of the universe, were 
largely ... Hydrogen is the <b>most abundant</b> element in the Universe; helium is 
second. Argon is a chemical element with the symbol Ar and atomic number 18. It is in 
group 18 of the periodic table and is a noble <b>gas</b>. Argon is the third-<b>most</b> 
<b>abundant gas</b> in the <b>Earth&#39;s atmosphere</b>, at 0.934% ... Solid argon hydride (Ar(H<b>2</b>
)<b>2</b>) has the same crystal structure as the MgZn<b>2</b> Laves phase. It forms at 
pressures between&nbsp;... The <b>atmosphere</b> of Mars is the layer of <b>gas</b> surrounding Mars. It is primarily 
composed of carbon dioxide (95.32%), molecular nitrogen (2.6%) and argon (1.9
%). It also contains trace levels of water vapor, oxygen, carbon monoxide, 
hydrogen and other noble <b>gases</b>. The <b>atmosphere</b> of Mars is much thinner than 
<b>Earth&#39;s</b>. ... N<b>2</b> is the second <b>most abundant gas</b> in the Martian <b>atmosphere</b>. These <b>gases</b> can absorb infrared radiation from the <b>Earth&#39;s</b> ... In contrast, the <b>most</b> 
<b>abundant gases</b> in the <b>atmosphere</b> are not&nbsp;... Helium is a chemical element with the symbol He and atomic number <b>2</b>. It is a 
colorless, odorless, tasteless, non-toxic, inert, monatomic <b>gas</b>, the first in the 
noble <b>gas</b> group in the periodic table. Its boiling point is the lowest among all the 
elements. Helium is the second lightest and second <b>most abundant</b> element in 
the ... In the <b>Earth&#39;s atmosphere</b>, the concentration of helium by volume is only 5.2
&nbsp;... Diatomic molecules are molecules composed of only two atoms, of the same or 
different ... of diatomic nitrogen (N<b>2</b>), the <b>most abundant gas</b> in the <b>Earth&#39;s</b> 
<b>atmosphere</b>. In the table, the subscripts and superscripts after Λ {\displaystyle \
Lambda } \&nbsp;... Nitrogen is the chemical element with the symbol N and atomic number 7. It was 
first ... form dinitrogen, a colourless and odorless diatomic <b>gas</b> with the formula N
<b>2</b>. ... of <b>Earth&#39;s atmosphere</b>, making it the <b>most abundant</b> uncombined element. The <b>abundance</b> of elements in <b>Earth&#39;s</b> crust is shown in tabulated form with the 
estimated crustal <b>abundance</b> for each chemical element shown as mg/kg, or 
parts per million (ppm) by mass (10,000 ppm = 1%). Note that the noble <b>gases</b> 
are not included, as they form no part of the solid ... Abundances of the elements (
data page) &middot; <b>Atmospheric</b> chemistry &middot; List of&nbsp;... Oxygen is the chemical element with the symbol O and atomic number 8. It is a 
member of the ... By mass, oxygen is the third-<b>most abundant</b> element in the 
universe, after hydrogen ... <b>2</b>. Diatomic oxygen <b>gas</b> constitutes 20.8% of the 
<b>Earth&#39;s atmosphere</b>. ... <b>2</b>, the major part of the <b>Earth&#39;s atmospheric</b> oxygen (see 
Occurrence).
water vapor nitrous oxide carbon dioxide methane ozone
Greenhouse gas