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

[Q]: A diet rich in calcium and vitamin d may reduce the risk of osteoporosis and related bone fractures.
[A]: A diet rich in calcium and what vitamin may reduce the risk of osteoporosis and related bone fractures?


[Q]: Compression zones is the opposite of rarefaction zones, where air molecules in waves are loosely packed.
[A]: What is the opposite of rarefaction zones, where air molecules in waves are loosely packed?


[Q]: A(n) fungus causes ergot, a disease that impacts crops directly and has more devastating effects on animals.
[A]:
A type of what organism causes ergot, a disease that impacts crops directly and has more devastating effects on animals?