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: Depressions in building materials that fill with frozen water will? Answer: expand.

Answer: when water freezes , that water expands

Question: Question: One of tunas favorite prey is the? Answer: sardine.

Answer: tuna eat fish

Question: Question: To have a positive impact of the environment? Answer: salvage plastic bottles instead of throwing them away.

Answer:
conserving resources has a positive impact on the environment