Question

Assertion: The first life originated in water.

Reason: Conditions were favorable for the origin of life in water.

• A. Both assertion and reason are correct and reason is the correct explanation for assertion
• B. Both assertion and reason are correct and reason is not the correct explanation for assertion
• C. Assertion is correct but reason is incorrect
• D. Both assertion and reason are incorrect

Answer 1

The correct option is A

Both assertion and reason are correct and reason is the correct explanation for assertion

Life is believed to have originated in sea water (also known as earth's primordial soup) because sea water contained all the essential elements that were required for the origin of first life. Secondly, at the time of origin of life, the ozone layer was not formed, so terrestrial origin of life was not feasible. Sea water provided a sort of protection for the primitive life originating in it, against the ultraviolet rays of the sun. Also the temperature of sea water was optimal for the reactions which lead to creation of life.