#Geography #UPSC #UGC-NET #CSIR-NET

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Hypothesis for origin of the Earth :
Nebular
Planetesimal
Binary Star
Gas dust cloud
Planetesimal Hypothesis:
in 1900, Chamberlain and Moulton considered that a wandering star
approached the sun. As a result, a cigar-shaped extension of material was separated from the solar surface.
As the passing star moved away, the material separated from the solar surface
continued to revolve around the sun and it slowly condensed into planets