Which of the following is an example of radiation?
You use a heated blanket to get warm.
A group of people stand around a fire to keep warm on a cold night.
The air is warmer near the ceiling of a home.
A pot sits on a hot stove burner.
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Ответ:
Fractional distillation is a method for separating a liquid from a mixture of two or more liquids. For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This method works because the liquids in the mixture have different boiling points.
Explanation: