Sunday, March 27, 2011


The Primitive Earth
There is evidence that the earth was formed about 4600million years ago. The earth and other planets and the sun, too are believed to have been formed by the condensation of clouds of cosmic dust and gas.  At the time of its formation, the earth was so hot that everything in it was probably in gaseous form. As the earth began to cool, its  matter begin to condense so that solids liquids as well as gases could co-exist. Recent studies suggest that simple one called organism. Some what similar to today’s cyanobacteria, were present in the earth about 3600 million years ago. This finding suggests that life originated some time between 4600 and 3600 million year ago.
SEE ALSO 
 Conditions on the primordial earth

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