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

Q: Articular processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head.

A: What processes allow for the greatest range of rotation within the vertebral column and facilitate the movement of the head?
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Q: Changing the shape of an elastic material gives it potential energy.

A: Changing the shape of an elastic material gives it what type of energy?
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Q: Precambrian mass extinction was the first mass extinction that occurred on earth.

A:
What was the first mass extinction that occurred on earth?
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