In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.
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Question: Question: A person needing to cook up a burger, but lacking a grill or fire, can heat burger meat on? Answer: a vehicle engine.

Answer: a car engine is a source of heat

Question: Question: Perspiration leaving the torso through evaporation helps? Answer: cool it down.

Answer: sweat cools a body

Question: Question: Ground has? Answer: elements.

Answer:
Earth is made of rock