Give a brief account of the various theories of 'Origin of Life' on earth.
(UPSC 2017, 20 Marks, )
पृथ्वी पर 'जीवन की उत्पत्ति' के विभिन्न सिद्धांतों का संक्षिप्त विवरण दें। (Give a brief account of the various theories of 'Origin of Life' on earth.)
Give a brief account of the various theories of 'Origin of Life' on earth.
(UPSC 2017, 20 Marks, )