Inorganic evolution means

Which one of the following experiments suggests that the simplest living organisms could not have originated spontaneously from non-living matter?

The findings of Miller's experiment on the origin of life provided evidence for the:

Two statements regarding the origin of life are given below:
$(a)$ The first organisms that emerged on Earth are believed to have been devoid of chlorophyll and incapable of respiration.
$(b)$ The first food-producing organisms were chemosynthetic and never released oxygen.
Based on the above statements,which of the following options is correct?

The origin of life occurred in ......... .

In their experiment,Urey and Miller took a mixture of ....... in a closed flask.