| 1 |
What percentage of all animal species are invertebrates? |
About 95%
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About 95%
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| 2 |
During the Hellenistic period, with which two ancient Egyptian goddesses did the Greeks identify Aphrodite? |
Hathor and Isis
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Hathor and Isis
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| 3 |
Which Belgian astronomer set the official boundaries of Antlia's constellation in 1930? |
Eugène Delporte
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Eugène Delporte
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| 4 |
Albert Einstein's paper on Brownian motion was validated experimentally in 1908 by which French physicist? |
Jean Perrin
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Jean Perrin
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| 5 |
In 1910, Robert A. Millikan and Harvey Fletcher reported the results of which experiment that measured the charge of an electron? |
Oil drop experiment
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Oil drop experiment
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