Which of the following best describes the solute effect?

A. Cloud droplets evaporate and ice crystals grow in a cold cloud.
B. Pollutants are removed from the atmosphere by cloud droplets.
C. Water droplets are kept from freezing at temperatures below 0°C.
D. Dissolution of hygroscopic nuclei occurs as does condensation at relative humidities less than 100 percent.


Answer: D

Environmental & Atmospheric Sciences

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