What is the atmosphere of Venus like?

The atmosphere of Venus is very thick and is about 90 times more massive than Earth's atmosphere. It is mostly carbon dioxide gas (about 96%), with some nitrogen (about 3%) and a very small amount of water vapor (0.003%). Venus also has a thick layer of sulfuric acid clouds. The sulfur in the clouds gives Venus its yellowish appearance. The clouds in Venus's atmosphere also move very fast, reaching speeds of 220 miles per hour (350 km per hour).


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