Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

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

A: Which trait of particles causes even cold objects to have some thermal energy?
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Q: During the early paleozoic, the amount of carbon dioxide in the atmosphere was much greater compared to today.

A: During the early paleozoic, the amount of carbon dioxide in the atmosphere compared to today was?
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Q: The sun and all objects held by it's gravity make up the solar system.

A:
The sun and all objects held by it's gravity make up the?
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