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.
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Question: Question: Who famously explicated the science of dropping something? Answer: Newton.

Answer: dropping something causes that something to fall


Question: Question: Which type of vegetation could you find in areas with low rainfall? Answer: cacti.

Answer: a desert environment has low rainfall


Question: Question: A blackberry bush needing to photosynthesize would have difficulty? Answer: at night.

Answer:
darkness has a negative impact on photosynthesis