Earth's History and Evolution

Romania
March 31, 2007 10:38am CST
Sometimes science deals with incredibly large numbers, sometimes with great distances still other times with infinity small particles. Everyone is consicious of the changes in physical and biological world;they give us an awarness of time. The daily rhythm, the seasons,physical changes throughout a human lifetime are familiar concepts of time to us. Time is measured by change, but where change occours over milions of yeas our own perception of time.To understand the rhythm of change of our planet,move the tectonic plates,build mountains and erode them again work over millions of years.
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