Diamond are created from coal after 1000's of years under pressure.
it cause a change in propertied but not elements
Answer:
D.A substance that is produced during a chemical reaction
A stem cell is an extraordinary, early stage, unspecified cell that has the potential to develop into a number of specialized cell types.
there important because they can replace cells that have been lost or damaged
I think the correct answer would be strong gravity. The factor that allows the earth to hold onto water would be the strong gravitational pull of the earth. In fact, it is what holds everything onto earth not only water. Hope this answers the question.