Which of the following would have prevented the development of conditions favorable for the evolution of life after Earth was formed?

0 votes
    complex organic molecules
    unbound, or free, oxygen molecules
    carbon dioxide and sulfur dioxide
    energy in the form of lightning and energy from the sun

asked May 30, 2013 in Biology by anonymous
    

1 Answer

0 votes
unbound, or free, oxygen molecules
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

Related questions




...