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

Q: A skeleton that consists of hard, mineralized structures located within the soft tissue of organisms is called endoskeleton.

A: A skeleton that consists of hard, mineralized structures located within the soft tissue of organisms is called what?
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Q: Catalyst gets poisoned happens if a molecule forms strong bonds to the catalyst.

A: What happens if a molecule forms strong bonds to the catalyst?
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Q: Millibar is the unit used to measure air pressure.

A:
What is the unit used to measure air pressure?
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