| 1 |
What is the electron affinity of astatine, and by what percentage is it less than that of iodine? |
233 kJ mol⁻¹, which is 21% less than iodine
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233 kJ mol⁻¹, which is 21% less than iodine
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| 2 |
How many claws did Apatosaurus have on each forelimb? |
Four
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Five
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| 3 |
Apollo 14 was the first mission to land in which lunar region? |
The lunar highlands
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The lunar highlands
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| 4 |
Which boulder at North Ray crater was described as taller than a four-story building and delivered the final blow to the pre-mission volcanic hypothesis? |
Big Muley
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House Rock
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| 5 |
Which United Nations resolution was ratified in 1976 as a result of Agent Orange's use in Vietnam? |
General Assembly Resolution 31/72
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General Assembly Resolution 31/72
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