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38 votes
38 votes
What causes the outside of the windshield of a car to get icy on a cold autumn night when there is no rain?

Water that is already on the glass freezes.


Water vapor from the air freezes on the glass.


Moisture comes from inside the car and freezes.

Hydrogen and oxygen in the air combine and form water, and it freezes.

User Sterling Nichols
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1 Answer

17 votes
17 votes

Answer: Water vapor from the air freezes on the glass

Step-by-step explanation:

I believe this one is correct because, for water to already be on the car it would of had to rain and clearly as state there isnt any rain. If Moisture comes from inside the car and freezes, then the windshield inside of the car would be icy. Hydrogen and oxygen in the air combine and form water, and it freezes isnt likely to be the answer but it definitely would be the second best.

User Bdelmas
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