Question

clouds are formed when
o sunlight causes water droplets to evaporate.
o liquid water condenses on grass and windows.
o raindrops freeze into tiny pellets and fall to earth.
o water vapor in the air condenses to form liquid water or ice.

Explanation:

Clouds form when water vapor in the air condenses. Evaporation (sunlight causing water droplets to evaporate) is the opposite of condensation. Liquid water condensing on grass and windows is dew. Raindrops freezing into tiny pellets and falling to Earth is sleet.

Answer:

water vapor in the air condenses to form liquid water or ice.