July 2012
Intermediate to advanced
224 pages
7h 51m
English

n the beginning, as the Earth formed 4.5 billion years ago from the condensation of a cloud of primordial cosmic dust and gas, its surface was initially bitterly cold and dark. As the dust slowly settled and swirling gases began to form a primitive atmosphere, the first glimmer of light broke through the gloom to illuminate a landscape torn by earthquakes and volcanoes and ravaged by fierce electrical storms. And then there was light, as the Bible says. Since then, the Earth has been illuminated by light from the Sun by day, when it reaches the ...
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