[DOC] [TLE] Atmosphere of Mars - Wikipedia [PAR] The atmosphere of Mars is the layer of gases surrounding Mars. It is composed 
mostly of ... The Martian atmosphere consists of approximately 96% carbon 
dioxide, 1.9% argon, .... Currently, the atmosphere is very thin. .... If methane on 
Mars were being produced by volcanoes (as it is in part on Earth) we would 
expect to find... [DOC] [TLE] What Is The Atmosphere Like On Other Planets? - Universe Today [PAR] Jan 8, 2016 ... Here on Earth, we tend to take our atmosphere for granted, and not without 
reason. ... the planet, whether it is a terrestrial or a gas/ice giant, the gases that 
make up its ... Above the dense CO layer, thick clouds consisting mainly of sulfur 
... Planet Mars has a very thin atmosphere which is composed of 96%... [DOC] [TLE] Discovering the Atmosphere on Different Planets [PAR] In contrast, the gas giant atmospheres are composed mostly of hydrogen and ... 
The Earth's original atmosphere was probably similar to Venus in composition, 
consisting of ... Mercury has a very thin, almost undetectable atmosphere 
composed of ... Mars' atmosphere is a thin layer composed mainly of carbon 
dioxide. [DOC] [TLE] Mars' Atmosphere: Composition, Climate & Weather - Space.com [PAR] Aug 3, 2012 ... Mars has a thin atmosphere  too thin to easily support life as we know it. The 
extremely thin air on Mars can also become very dusty. [DOC] [TLE] Venus and Mars [PAR] However, the environment of Venus is very different from the Earth. ... The 
atmosphere of Venus is composed of 97% CO2, 2% N2 and less than 1% of O2, 
H2O and CH4 (methane). .... It consists mainly of frozen carbon dioxide. .... 
designed to see if anything in the Martian soil would "eat" some nutrients that 
were mixed in. [DOC] [TLE] Planetary Atmospheres [PAR] Mars also has an atmosphere that is primarily carbon-dioxide, but on Mars, the ... 
The giant outer planets Jupiter, Saturn, Uranus, and Neptune have extremely 
thick ... these light gases were blown away in the early stages of the solar system 
via ... weigh about 2000 times more than electrons, so we can ignore the 
electrons. [DOC] [TLE] The Inner Planets of the Solar System | Mercury, Venus, Earth, Mars [PAR] The surface of Mercury is very much like that of the moon. ... Like the earth, Venus 
is covered with thick clouds and has an atmosphere. ... They believe that if we put 
plants on the planet that produce oxygen there would be ... The gases, mostly 
nitrogen and carbon dioxide were kept in the atmosphere by the Earth's gravity. [DOC] [TLE] The Formation and Evolution of Planetary Atmospheres [PAR] How did they accumulate gases, if they formed in a region too hot for gases to 
exist as .... The alternative theory of atmospheric formation is that gases were 
somehow ... gases) would have been very much like the atmosphere of Venus -- 
primarily .... would have come to an end, leaving at least the thin atmosphere that 
we... [DOC] [TLE] Once a day, Io's atmosphere collapses | Space | EarthSky [PAR] Aug 3, 2016 ... Jupiter's moon Io has active volcanos spewing gases into its thin atmosphere. ... 
system, and it has an extremely thin atmosphere consisting mainly of sulfur 
dioxide (or SO2 ... We've long suspected this, but can finally watch it happen. ... 
We were unable to load Disqus. ... If we could see Mars in ultraviolet  [DOC] [TLE] Nutrients_in_Mars_Soil - NASA Quest! [PAR] If we were to make an artificial area for growing vegetation such as different ... 
Plant growth requires an atmosphere containing a reasonable amount of ... and 
the balance an inert gas and also a soil which can provide the essential plant 
nutrients. ... very thin (approximately one hundredth of that of Earth) and consists 
mainly... [DOC] [TLE] Planet - Facts for Now - Scholastic [PAR] In ancient times, sky watchers observed that there were five special points of light 
in the night sky. ... Today we

Question: If we were on Mars, the atmosphere would be incredibly thin, consisting mainly of this gas
Answer: carbon dioxide