Answer :
The experiments conducted by Miller & Urey demonstrated:
1) **Formation of Organic Molecules**: The experiments showed that under conditions simulating early Earth, such as a reducing atmosphere with gases like methane, ammonia, water vapor, and hydrogen, simple organic molecules like amino acids could be spontaneously produced. This supported the hypothesis that organic molecules, the building blocks of life, could have arisen from inorganic precursors on early Earth.
2) **Abiogenesis Possibility**: The results of the experiments provided evidence that life could have originated from non-living matter through a process called abiogenesis. By recreating early Earth conditions in their lab, Miller & Urey showed that the basic components of life could be generated from simple chemical reactions.
3) **Insight into Origins of Life**: The experiments offered valuable insights into how life might have begun on Earth billions of years ago. They suggested a plausible scenario for the chemical evolution that could have led to the emergence of life from non-living materials, shedding light on the origins of life on our planet.
In summary, the experiments of Miller & Urey demonstrated the potential for the spontaneous formation of organic molecules from inorganic substances under conditions similar to those believed to exist on early Earth.
