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: Light is scattered from molecules in our atmosphere.

A: Light is scattered from what in our atmosphere?
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Q: Ethical considerdations prohibits knocking out genes.

A:
What prohibits knocking out genes?
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