How life could have started?

First in the earth., there is a reduced environment and have hydrogen, nitrogen etc. and due to high temperature,smallll moleculea like ammonia, water, hydrogen cyanide etc were formed. Then these molecules combined to form aminoacids, sugars and nucleotides. Then by condensation reaction, nucleus acids, proteins acarbohydrate andand lipids were formed. after that nucleoprotein, glycoprotein etc. Then these molecules were enclosed in a membrane of lipid and protein. Taht is the first organism of the earth.