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

[EX Q]: Water, air, and milk list includes only examples of matter that can take the shape of a container.
[EX A]: Which list includes only examples of matter that can take the shape of a container?

[EX Q]: Oxygen gas is given off by plants.
[EX A]: Which gas is given off by plants?

[EX Q]: Photosynthesis is described by this statement: carbon dioxide and water are turned into sugar and oxygen.
[EX A]:
Which of the following statements best describes photosynthesis?