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Quiz	Takes	Points	Best
Geology: All Rock Types on Wikipedia	20	-	-
Geological Time Scale (Eons, Eras, Periods, Epochs, Ages)	517	-	-
100 Most Common English Words	1,328,554	0	-
Countries of the World Quiz	48,018,834	0	-
Recognized, Non-Recognized Countries, and Territories of the World	160,251	0	-