But when the atmosphere contains little or no dust near aphelion -- the more typical state of affairs, he asserts -- water vapor easily condenses into ice crystals, forming low-lying clouds in abundance.
(the atmosphere; contains; little or no dust near aphelion) (he; asserts; water vapor easily condenses into ice crystals, forming low-lying clouds in abundance; T:when the atmosphere contains little or no dust near aphelion) Context(he asserts,List([103, 113))):(water vapor; easily condenses; into ice crystals)
he asserts,List([103, 113))
the atmosphere he water vapor
contains asserts easily condenses
little or no dust near aphelion
water vapor easily condenses into ice crystals, forming low-lying clouds in abundance T:when the atmosphere contains little or no dust near aphelion
into ice crystals