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My Answered Questions
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can bacteria survive in water?
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Has there been any major problems during your time as a scientist?
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how does a chemical test tube work
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what is the strongest medicine?
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what`s your favourite subject for science?
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hi how many animals are endanged?
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is bacteria healthy?
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hello Juan which is the most important planet in our solar system?
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hi where do you find bacteria and why do we have it?
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when you take the mud from the bottom of the ocean have you ever found any thing in it?