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How The Earth Was Made

Posted: 12/13/2011 5:17:04 PM   Reads: 3335   Submitted By:Voyager70   Category: Space   Source: www.messagetoeagle.com
There is a lot of information in How the Earth Was Made, but perhaps the most interesting relates to time. Quite often, the numbers are so staggering that scientists refer to it as "deep time," an appropriate term when one grapples with the notion that our planet is 4.5 billion years old, or that the oceans were formed by rainfall that lasted literally millions of years, or that 700 million years ago, Earth was completely covered by ice that was a mile thick, with surface temperatures reaching minus 40 degrees Fahrenheit.






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