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Physical elements at time of origin of life

Specify the physical elements which have contributed to the great amount of the available energy over the primitive earth during the time of origin of life?

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3.5 billion years ago, water cycle was faster than today, resulting in hard storms having the intense electrical discharges. There was also no chemical protection from ozone layer against the ultraviolet radiation. The temperatures within the atmosphere and over the planet surface were very high. Electricity, radiation and the heat constitutes the large available energy sources.

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