Given a scientific passage and an answer, generate a question for the given answer.

Q: Passage: The Moon has no atmosphere. With no atmosphere, the Moon is not protected from extreme temperatures. The average surface temperature during the day is approximately 107C (225F). Daytime temperatures can reach as high as 123C (253F). At night, the average temperature drops to -153C (-243F). The lowest temperatures measured are as low as -233C (-397F). Answer: atmosphere

A: What does the moon not have to protect it from extreme temperatures?
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Q: Passage: A solute generally lowers the freezing point of a solvent, which is called freezing point depression. For example, spreading salt on an icy road melts the ice. Answer: lowers it

A: A solute generally does what to the freezing point of a solvent?
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Q: Passage: Chemical reactions either require energy or release energy. The amount of energy needed or released depends upon the structure of the molecules that are involved in the reaction. Some reactions need to be heated for long periods of time in order for change to take place. Other reactions release energy, allowing heat to be given off to the surroundings. Answer: energy

A:
Chemical reactions either require or release what?
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