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

Q: Chewing insects such as dragonflies and grasshoppers have two many sets of jaws.

A: Chewing insects such as dragonflies and grasshoppers have how many sets of jaws?
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Q: Protist diseases in humans are caused by protozoa.

A: What type of diseases in humans are caused by protozoa?
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Q: The mesopause is at the top of the mesosphere.

A:
What is at the top of the mesosphere?
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