(N/A) Louis Pasteur's experiments successfully disproved the theory of spontaneous generation,demonstrating that life arises only from pre-existing life (Biogenesis).
However,this statement applies to modern biological life. To explain the origin of the first life forms,we must consider the theory of chemical evolution proposed by Oparin and Haldane.
They suggested that the first forms of life could have originated from pre-existing non-living organic molecules (e.g.,$RNA$,$proteins$,etc.) through a process of chemical evolution.
Therefore,the origin of life was preceded by the formation of diverse organic molecules from inorganic constituents in the primitive atmosphere.