A) simple organic molecules can for spontaneously under conditions like those thought to prevail early in the earth's history.
B) The earliest life forms introduced large amounts of oxygen to the atmosphere.
C) Life can be created in a test tube.
D) Long chains of DNA can form under abiotic conditions.
Correct Answer: A
Solution :
[a] In 1953, Stanley Miller and Harold Urey created, in the laboratory, conditions comparable to those of early Earth, with water vapour, hydrogen, methane, and ammonia. The Miller-Urey apparatus produced a variety of amino acids and other organic compounds found in living organisms today.
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