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: In order for crops to grow food safely pesticides are used on them. When it floods, this can cause what to be poisonous? Answer: Runoff.
[EX A]: eating food that contains pesticides can have a negative impact on humans

[EX Q]: Question: Plants are like all other organisms, in that they need what to survive? Answer: sustenance.
[EX A]: an plant requires food for survival

[EX Q]: Question: A retina may be illuminated by? Answer: campfires.
[EX A]:
when light enters the eye through the pupil , that light falls on the retina