Window glasses are wet on a chilly winter morning because of:

Answer: B. Condensation of water vapour

Window glasses are wet due to condensation, where invisible water vapour turns into liquid.
On a chilly morning, the cold glass surface cools the warmer air touching it.
Since cold air cannot hold as much moisture, the vapour loses heat and settles as droplets.
This is a physical change from a gas to a liquid, the exact opposite of evaporation.

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