If you mean what does it look like, you might observe it :
If you mean how did it get there:
Venus has the thickest carbon dioxide atmosphere.
Mars is the terrestrial planet with a thin carbon dioxide atmosphere. Venus also has an atmosphere of carbon dioxide, but it is very thick.
List the compounds so I can answer your question. I would imagine Carbon Dioxide and Carbon Monoxide would be the first 2.
Such an atmosphere on a planet would be the result of carbon dioxide emitted from volcanoes.
Carbon Dioxide at .033% The only other two sources in the atmosphere are methane and carbon dioxide both of which are much less abundant.
It appears as its dioxide in gaseous form.
Carbon is removed from the atmosphere in some ways. For example, plants and trees eliminate carbon from the atmosphere through photosynthesis. Carbon will be released into the atmosphere when an organism dies.
Most of the carbon in the atmosphere is in the form of carbon dioxide, (CO2) gas.
Carbon can enter the atmosphere. It moves in and out of the atmosphere through the earth's regular carbon cycle.What it can not do is enter as pure carbon. Carbon is a solid in it's natural state and solids fall out of our atmosphere. Carbon must mix with a gas, such as oxygen, to create another gas, carbon dioxide, to enter the atmosphere.
Carbon Cycle.
No, it puts carbon into the atmosphere.
yes the atmosphere is a long term carbon store
How is carbon cycled from the atmosphere through producers and consumers?
The carbon cycle
It is not fixed in the atmosphere. It moves as part of the carbon cycle in and out of the oceans, the atmosphere and the land.
Venus has the thickest carbon dioxide atmosphere.
Plants absorb carbon dioxide from the atmosphere.