How soon depends on the quality of embalming, burial container, burial location (such as mausoleum or in-ground). One funeral director I know exhumed a body 5 years after it was buried.
Definition: Aerobic metabolism is the creation of energy through the combustion of carbohydrates and fats in the presence of oxygen. The only byproducts are carbon dioxide and water, which your body disposes of by breathing and sweating.
The word aerobics is defined as with oxygen. When an individual is performing an aerobic activity their body uses oxygen to produce the energy required to actually perform the exercise. One of the main physiological differences between aerobic and anaerobic exercise is how the metabolic process occurs.