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

Q: Carbon dioxide is an example of a material that easily undergoes sublimation.

A: Carbon dioxide is an example of a material that easily undergoes what?
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Q: Some gametophytes develop underground and form mycorrhizal associations with fungi.

A: Some gametophytes develop underground and form mycorrhizal associations with what?
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Q: The term flammability is used to describe the ability of matter to burn.

A:
What term is used to describe the ability of matter to burn?
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