Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Age causes reduction of elasticity in all organs.

Answer: What causes reduction of elasticity in all organs?


Question: Human facial expressions can communicate emotions.

Answer: What can human facial expressions communicate?


Question: In solid state kind of state are particles fixed in place relative to one another.

Answer:
In what kind of state are particles fixed in place relative to one another?