Safety toolbox topic on the different chemical label colors and numbers and what they mean Safety toolbox topic on the different chemical label colors and numbers and what they mean
Ice Age: Continental Drift. Ice Age: Continental Drift is a 2012 American 3-D computer-animated adventure/comedy film directed by Steve Martino and Mike Thurmeier. It is the fourth installment of the Ice Age series, being produced by Blue Sky Studios and distributed by 20th Century Fox, and the first sequel not to be directed by Carlos Saldanha.
There have been five known ice ages in the Earth's history, with the Earth experiencing the Quaternary Ice Age during the present time. Within ice ages, there exist periods of more severe glacial conditions and more temperate referred to as glacial periods and interglacial periods, respectively.escriptions [edit]. The second ice age, and possibly most severe, is estimated to have occurred from 850 to 635 Ma (million years) ago, in the Neoproterozoic Era and it has been suggested that it produced a second  Snowball Earth  in which the earth iced over completely.