Small particles in the air become surfaces on which water vapor can condense and forms cloud droplets which are known as cloud condensation nuclei.
(Small particles in the air; become; surfaces on which water vapor can condense and forms cloud droplets) (surfaces; can condense; water vapor) (cloud droplets; are known; as cloud condensation nuclei)
Small particles in the air surfaces cloud droplets
become can condense are known
surfaces on which water vapor can condense and forms cloud droplets
water vapor
as cloud condensation nuclei