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: Constant random motion trait of particles causes even cold objects to have some thermal energy.

Answer: Which trait of particles causes even cold objects to have some thermal energy?


Question: Covalent solutes separate into individual molecules when dissolved.

Answer: Covalent solutes separate into what when dissolved?


Question: Pressure is defined in physics as the amount of force pushing against a given area.

Answer:
What is defined in physics as the amount of force pushing against a given area?