Condensation nuclei:
A)do not include hygroscopic aerosols.
B)by definition do not dissolve in water.
C)are relatively abundant in the atmosphere.
D)typically originate as micrometeors from space.

Question

Quizplus · Accepted Answer

Condensation nuclei are particles in the atmosphere that serve as surfaces for water vapor to condense onto and form clouds. They can include pollution, dust, salt particles, and other small particles that are relatively abundant in the atmosphere.

Answer: A, B 
 Condensation nuclei can include hygroscopic aerosols, which readily attract and absorb water, as well as particles that do not dissolve in water. Both of these types of particles can serve as surfaces for water vapor to condense onto and form clouds. However, this answer does not fully address the question, as it asks for the best choice, which is C.

Condensation Nuclei