hen the whole 4.5 billion processes happened for this, watch this video.<br />---------------------------------------<br /><br />* Research credit ( हमने यह जानकारी कैसे एकत्र की - how we got this information )<br />NASA<br />Life: Origin, evolution, extinction: the epic story of life on earth by a new scientist ( book )<br />The Planet in a Pebble: A journey into Earth's deep history by Jan Zalasiewicz ( book )<br />BBC <br />and more.
