The constant, dynamic process of continual addition of new bone tissue (bone ) and removal of old bone tissue (bone ) is a process called bone . this ongoing process occurs at both the (outer) and (inner) surfaces of a bone. it is estimated that about of the adult human skeleton is replaced yearly. this process does not occur at the same rate everywhere in the skeleton. for example, the in our skeleton is replaced at a slower rate than the .

a. the production of carbon dioxide through the process of photosynthesis

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy