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why is science so important (1 comment)
What are quarks and what are they made of? (1 comment)
How do we collect cells and see them if they are so small? (1 comment)
Is it true that your heart stops when you sneeze (1 comment)
is it true when you sleep your heart stops (1 comment)
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why is science so important (1 comment)
What are quarks and what are they made of? (1 comment)
How do we collect cells and see them if they are so small? (1 comment)
Is it true that your heart stops when you sneeze (1 comment)
is it true when you sleep your heart stops (1 comment)