The concept of chemical evolution is based on

Options

A. Crystallization of chemicals
B. Interaction of water, air and clay under intense heat
C. Effect of solar radiation on chemicals
D. Possible origin of life by combination of chemicals under suitable environmental conditions

Answer

D

Explanation

According to theory of chemical origin the first life arose from a collection of chemical substance through a progressive series of chemical reactions. Solar radiations, heat radiated by earth and lightening must have been the chief energy source for these chemical reactions.