Which of the following are considered requirements for the emergence of life? Choose one or more:

A. continual source of energy

B. molecular oxygen (O2)

C. liquid water

D. essential elements for organic molecules

E. DNA

All exept E

Explanation:

The requirements for the emergence of life are:

A constant energy source such us, radiation, lightning, solar light, and heat to induce the formation of biomolecules. A supply of life constituting major elements or essential elements for organic molecules such as carbon (C), hydrogen (H), nitrogen (N), Oxygen (O), phosphorus (P), iron (FE) among others. A non-toxic environment with the presence of liquid sodium-free water. Dry - wet cycles to cell membranes and polymerize RNA. Appropriate chemical non-toxic conditions in the atmosphere including reduced gases such as HCN, NH3, and CH4.