There are six elements that make up 99.9% of the human body. which one is responsible for most of the material found in teeth?

energy and particles

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

c. heat from the poles back down towards the equator.