Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.
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Question: Question: What form does formaldehyde take at room temperature? Answer: gas

Answer: Formaldehyde is a gas at room temperature. Acetaldehyde boils at 20C; in an open vessel, it boils away in a warm room. Most other common aldehydes are liquids at room temperature.

Question: Question: Diamond, graphite and fullerene are examples of what form of carbon? Answer: crystalline

Answer: Pure carbon can form different types of crystals. Crystalline forms of carbon include diamond, graphite, and fullerenes.

Question: Question: What is it called when plants release water vapor through their leaves? Answer: transpiration

Answer:
Transpiration is like evaporation because it changes liquid water to water vapor. In transpiration, plants release water vapor through their leaves. This water vapor rises into the atmosphere.