This is the most common source of condensation nuclei in places like Pittsburgh and Cleveland:
A)human activities.
B)dust.
C)sea salt.
D)aerosols from fires.

Question

Quizplus · Accepted Answer

Human activities are the most common source of condensation nuclei in industrial and urban areas like Pittsburgh and Cleveland, due to emissions from factories, vehicles, and other sources.

This Is the Most Common Source of Condensation Nuclei in Places