Answer:
is ther more to the question
These atoms abilities to attach to one another allowable for the creation of innumerable compounds conducive to life all organisms need four types of organic molecules nucleic acids, proteins, carbs and lipids cannot exist if any of these molecules are missing! Good luck!
Oxygen and sugar. Or in terms of compounds, O2 and C6H12O6
dont tell me why but, what does diatoms have to see with petroleum? well, i think is "e" cause it has almost no relationship according to my thoughts