Question

What two conditions are required for cloud formation.

Answer 1

Moisture and Cooling air

Step-by-step explanation:

Moisture – There must be enough water vapor in the air for a cloud to form.

Cooling air –The air temperature must be reduced enough for water vapor to compress.

Answer 2

Moisture – There must be sufficient water vapor in the air to build a cloud. Cooling air – The air temperature must decrease enough for water vapor to condense