How does climate evidence support the theory of continental drift?

This drawing shows a human body system. what is the primary function of this body system?

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

Once similarity and one difference between a mixture of elements and a mixture of compounds