Answer:
Primordial soup
Step-by-step explanation:
The primordial soup is a theoretical mixture of organic compounds (water vapor, carbon dioxide, nitrogen, methane and ammonia) that may have given rise to life on Earth. When one wants to explain how living organisms appeared on Earth, the theory of primordial soup is often used, which seems to be the most plausible scientific explanation.
Conditions on Earth in its early days were very different from current conditions. The atmosphere had no oxygen, being rich in hydrogen, ammonia, methane and water. According to the primordial soup theory, these substances were prepared to produce amino acids, which would have been able to combine to create organic material that, eventually, could have given rise to life. In order for this to happen, it was necessary to have a catalyst; the amino acids did not appear spontaneously.