The primordial soup
Similar experiments to those done by Miller have definitely proved that in high temperature conditions, with frequent storms and intense ultraviolet rays, which are similar to the kind of conditions present on Venus nowadays, simple inorganic molecules can transform into more complex substances which we call organic because they are part of living organisms. These organic substances spread in the sea and reacted between themselves and with inorganic salts. Even small water basins such as lakes and lagoons offered the right conditions for these reactions to take place leading to the creation of certain compounds and increasing their concentration. Presumably the accumulation of organic substances was remarkable because neither decomposing microorganisms nor oxygen that could modify them existed. This is how a thick substance that scientists call “ primordial soup” or “prebiotic soup” was created.
Today this kind of substance would ferment and produce poisonous gasses with an acrid smell. In the sea some molecules will have found shelter from the ultraviolet rays that could destroy them, while others will have found great conditions to gather and bind to become more complex structures, forming the so called “polymers”. Therefore the sea is where the chemical evolution of organic substances will have continued.
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