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: Solid is characterized by molecules with minimal movement and strong forces between them.

Answer: Which state of matter is characterized by molecules with minimal movement and strong forces between them?


Question: A bow wake is created when the wave source moves faster than the wave propagation speed.

Answer: What is created when the wave source moves faster than the wave propagation speed?


Question: Thermoregulation is the process when animals maintain an internal temperature.

Answer:
What is the process when animals maintain an internal temperature?