Scientists discover life on earth started 300 million years earlier than previous estimate
Q. Scientists have found evidence that life likely existed on Earth at least 4.1 billion years ago — ____ million years earlier than previous research suggested.- Published on 21 Oct 15a. 200
b. 300
c. 400
d. 500
ANSWER: 300
This discovery shows life may have commenced after the planet was formed 4.54 billion years ago. Research was carried out by geochemists from University of California, LA. The research indicates that life existed prior to the evolution of the inner solar system that formed the moon's large craters 3.9 billion years ago.
