According to conventional religious literature,how old is the Earth?

According to Oparin's theory,what did the primitive atmosphere of the Earth contain?

Identify the correct sequence in which the following substances appeared during the origin of life on Earth.

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?

Which gases were mixed by Miller in a closed flask in his experiment?

Describe the formation of the first cell.