Nitrogen and oxygen account for ninety-nine percent of the gases in dry air, with argon, carbon dioxide, helium, neon, and other gases making up minute quantities. Water vapor and dust also are a part of Earth's surroundings. other planets and moons have very specific atmospheres, and some haven't any atmospheres at all.
Choice a: The troposphere seems as the maximum critical layer of the atmosphere. it is the lowermost layer of the surroundings and incorporates 75% of all air in the environment. maximum clouds occur on this layer due to the fact that 99% of the water vapor inside the atmosphere is discovered right here.
Water (H2O) is likewise present within the ecosystem, as invisible, gaseous water vapor and within the shape of seen, tiny droplets or ice crystals we realize as clouds. The great majority of the atmosphere is made up of nitrogen (seventy eight%) and oxygen (21%). The relaxation of the gases mixed most effectively accounts for approximately 1% of the ecosystem.
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