Which is most likely to cause clouds to form in a previously clear sky? (1 point)

Question

An air mass sinks and becomes colder.
An air mass sinks and becomes warmer.
A colder air mass moves into the area and rises.
A warmer air mass moves into the area and rises

Answer 1

The most likely option to cause clouds to form in a previously clear sky is: A colder air mass moves into the area and rises.

When a colder air mass moves in, it pushes the warmer, moist air upwards. As the warm air rises, it cools, and if it cools to its dew point, condensation occurs, leading to cloud formation.