What evidence do we have for the origin of life from inanimate matter?

Explanation

Miller and Urey in 1953 assembled an atmosphere similar to that thought to exist at early period over earth. This was maintained at a temperature just below `100^(@)`C and sparks were passed through the moisture of gases to simulate lighting. After one week 15% of the carbon had been converted into simple compounds of carbon including amino acids which make up protein molecules.