Science

Earthmen first sent a spacecraft to which planet?

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What scientist discovered that sunspots occur in an eleven-year cycle?
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What type of circulatory system pumps blood into cavities instead of through vessels?
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Which scientific term means "a small body of water"?
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Who was the first woman to win the Iditarod sled dog race?
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The oldest living tree is 4,843 years old and can be found where?
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What are produced in the anther of a flower?
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Which is the organelle involved with waste removal?
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How many times is Jupiter larger than Earth in diameter?
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