Science

Earthmen first sent a spacecraft to which planet?

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What type of lens has a thin middle and makes objects appear smaller?
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What’s the boiling point of water?
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What is the female reproductive cell of flowering plants?
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Which of these is a virus that doesn't immediately cause damage to tissue?
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What is a space which is entirely devoid of matter called in science terms?
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How often does sunspot activity reach its lowest point?
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Which of these is one of the three basic cloud forms?
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What constant is equivalent to 96,485 coulombs per mole of electrons?
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