When moist air comes in contact with a cold surface in the winter, one result can be frost. What has happened to the water vapor in the air to cause frost?
It has melted. It has sublimated. It has evaporated. It has condensed.
Question: When moist air comes in contact with a cold surface in the winter, one result can be frost. What has happened to the water vapor in the air to cause frost?
A. It has melted.
B. It has sublimated.
C. It has evaporated.
D. It has condensed.
Answer: