Condensation nuclei, tiny particles of matter in the air, are important because _____ .
A) they will affect the environmental lapse rate
B) they provide a surface for water molecules to form on
C) they increase the density of air and thus its buoyancy
D) they provide point sources of heat in the air

Question

Quizplus · Accepted Answer

Condensation nuclei provide a surface for water molecules to form on. This is how clouds, fog, and precipitation form. Without condensation nuclei, the water vapor in the air would not have a surface to attach to and would remain as vapor.

Condensation Nuclei, Tiny Particles of Matter in the Air, Are