Clouds, and various forms of precipitation as well, are formed when the air is cooled sufficiently or enough water vapor is added.
(Clouds, and various forms of precipitation; are formed; T:when the air is cooled sufficiently or enough water vapor is added) (the air; is cooled sufficiently; ) (enough water vapor; is added; )
Clouds, and various forms of precipitation the air enough water vapor
are formed is cooled sufficiently is added
T:when the air is cooled sufficiently or enough water vapor is added