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

Q: Warm and humid temperature and moisture conditions describe an air mass that originates over the atlantic ocean near the equator.

A: Which temperature and moisture conditions describe an air mass that originates over the Atlantic Ocean near the equator?
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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: A(n) radioisotopes is an isotope that is radioactive.

A:
What is an isotope that is radioactive called?
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