why there is an atmosphere around earth while many planets doesn't have atmosphere
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Answer:
The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation
many planets don't have an atmosphere because their gravitational pull is too less to hold an atmosphere
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Answer:
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An atmosphere is more likely to be retained if the gravity it is the subject to is high and the temperature of atmosphere is low.The atmosphere of earth is composed of nitrogen, argon,carbon dioxide,oxygen and other gases.... but the other planets haven't features like our earth.they haven't gravity,air or oxygen etc cc........
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