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10. It is dangerous or had for your health.

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9. It is too expensive.

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8. It brings people comfort.

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7. It is important for science.

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6. It is clean and does not pollute the air.

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5. It can help many people in the future.

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4. It is good for the economy.

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3. Does that matter?

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2. I would rather not tell you.

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1. It can't be tree.

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