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← ScienceWhich outcome occurs when humidity reaches 100% around finely divided airborne dust?
A)Supersaturation stalls further phase transition
B)Deposition ceases water molecule transfer
C)Cloud condensation nuclei enable nucleation✓
D)Adiabatic lapse rate stabilizes air mass
💡 Explanation
When humidity hits 100%, the **hygroscopic effect** of dust favors water condensation, thereby forming cloud droplets when they serve as cloud condensation nuclei facilitating nucleation because that lowers the energy barrier for phase change, therefore droplet formation occurs rapidly rather than supersaturation alone controlling condensation.
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