Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Hand lens tool should a student use to see the patterns on a small object.

Answer: Which tool should a student use to see the patterns on a small object?

Question: Destructive interference in waves occurs two troughs what things overlap.

Answer: Destructive interference in waves occurs when what things overlap?

Question: Environmental contaminants is one problem with current methods of aluminum production.

Answer:
What is one problem with current methods of aluminum production?