If he's who I think he is:
A genius! :)
I might be thinking of someone else though!
Have a developmentally more mature understanding of death
Troposphere should be the answer
Aerobic cellular respiration, glucose is metabolised in the presence of oxygen and leads to the formation of energy as a main product. the by products are carbon dioxide and water. The process takes place in four phases: glycolysis, pyruvate oxidation, citric acid cycle, and oxidative phosphorylation.