Given a statement, generate a question such that the answer is contained in that statement.

Q: straightening an arm consumes energy

A: How much energy does straighten an arm consume?
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Q: Moss occupies niches in wet habitats

A: What niche does Moss occupie in wet habitats?
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Q: MDMA alter neurotransmitters in the brain.

A:
What alters neurotransmitters in the brain?
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