Science

Earthmen first sent a spacecraft to which planet?

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How many bones do sharks have in total?
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What are the "Big Dipper" and "Orion" examples of in the night sky?
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Which of these is the formula to convert Fahrenheit to Celsius?
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How fast does light travel in one second?
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Which of these objects is an example of a simple machine?
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What are the first four planets in the solar system called?
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What famous scientist introduced the concept of "space-time"?
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In which of the following animals does the male give birth to the young?
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