Question 5: Though the Long Count was most likely invented by the Olmec,[7] it has become closely associated with the ________, whose classic period lasted from 250 to 900 AD.
Question 6: December 2012 marks the ending of the current b'ak'tun cycle of the ________, which was used in Central America prior to the arrival of Europeans.
Question 8: Astronomers and other ________ have rejected the apocalyptic forecasts, on the grounds that the anticipated events are precluded by astronomical observations, or are unsubstantiated by the predictions that have been generated from these findings.
Question 10: Also, ________ now predicts that the solar maximum will peak in 2013, not 2012, and that it will be fairly weak, with a below-average number of sunspots.