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Title: At times in Earths history, volcanoes have been more active and large ice sheets have covered the ... Post by: salsathief on Jan 23, 2018 At times in Earths history, volcanoes have been more active and large ice sheets have covered the continents. The fact Title: At times in Earths history, volcanoes have been more active and large ice sheets have covered the ... Post by: selica on Jan 23, 2018 Content hidden
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