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.
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Question: Fact: transpiration usually happens in the leaves of a plant

Answer: A thing that is experiencing transpiration is likely to be?

Question: Fact: An example of migration is birds flying south in the winter

Answer: Birds go south to look for?

Question: Fact: as the use of alternative fuels increases , the use of gasoline will decrease

Answer:
New hydro-electric vehicles will result in gas stations?