There is no atmosphere around many planets.why it exists on earth.

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$F o r a t m o s p h e r e t o e x i s t o n a n y p l a n e t, t h e r e a r e f o l l o w i n g r e q u i r e m e n t s : 1 . t h e p l a n e t s h o u l d h a v e r i g h t g a r v i t y t o k e e p a t m o s p h e r e i n t a c t a r o u n d t h e p l a n e t . 2 . t h e t e m p e r a t u r e o f t h e p l a n e t m u s t b e r i g h t . 3 . o n t h e p l a n e t t h e r e s h o u l d n o t b e m u c h t h e r m a l a g i t a t i o n . 4 . t h e r e s h o u l d n o t b e o v e r h e a t i n g o f p l a n e t b y a n y r e a s o n . 5 . g a s e s w h i c h a r e d i s a p p e a r i n g f r o m t h e p l a n e t i f a r e b e i n g r e p l a n i s h e d b y n a t u r e t h e n t h e r e i s p o s s i b i l i t y o f a t m o s p h e r e a r o u n d t h e p l a n e t .$

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