Question

which is most likely to cause clouds to form in a previously clear sky?

A. a warmer air mass moves into the area and rises
B. an air mass sinks and becomes warmer
C. a colder air mass moves into the area and rises
D. an air mass sinks and becomes colder

Answer 1

[AI-generated answer — Bot GPT 3.5]

C. a colder air mass moves into the area and rises