What goes up but floats? You can go through it but cannot hear it. What is it?
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- What flies when it is on but floats when it is off?
- What floats on water but not even 1,000 men can lift it?
- What covers the Earth like a blanket, floats above the clouds and helps prevent cancer?
- What can you hear but not touch or see?
- I am an instrument that you can hear, but you can not touch or see me. What am I?