In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

[EX Q]: Question: O2 molecules stacked on top of each other create weight which is then tallied by a? Answer: barometer.
[EX A]: a barometer is used to measure air pressure

[EX Q]: Question: A pot of water is ready to cook noodles when it is boiling, as noted by? Answer: bubble production.
[EX A]: boiling is when liquids are heated above their boiling point

[EX Q]: Question: Which location gets the most sunlight? Answer: Sahara.
[EX A]:
a desert environment usually has a lot of sunlight