instruction:
Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.
question:
Fact: plants are a source of oxygen through photosynthesis
answer:
Chloroplasts in shrubs scrub carbon from the air and return?


question:
Fact: the moon does not contain water
answer:
Which doesn't contain water?


question:
Fact: sugars are transported from the leaves to the roots of a plant
answer:

During photosynthesis, plants produce sugar that may help with their what?