Your body uses up its stores of ATP (produced in the mitochondria) and the fatigue is the ensuing result. As well, once the ATP is depleted your body switches over to an alternative form of energy that produces toxins -what we call lactic acid. Its the build up of this toxin that makes your muscles sore.
fatigue....
The evidence Fatigue during prolonged exercise is definitely associated with depletion of glycogen stored in the liver (causing hypoglycaemia - low blood sugar) or in the muscles
The major cause of ozone depletion is the reaction of CFC with ozone. They decompose ozone and cause its depletion.
There are different forms of fatigue. The most common ones include metabolic fatigue, muscular fatigue, energy depletion and fatigue of the nervous system.
Fuels release greenhouse gases. These gases can cause ozone depletion.
Greenhouse gases cause ozone depletion. They react with ozone to decompose it.
CFC's react with ozone to cause depletion. they decompose the ozone layer.
depletion
Carbon dioxide can cause the depletion of ozone indirectly. It is due to the global warming which then causes ozone depletion.
This depletion will cause UV to enter earth. This will cause extinction of mankind.
The principle cause of ozone depletion is CFC's. They react with it to destroy it.
To lessen the depletion, curb CFC's. They cause ozone depletion.