If you stir a cup of leaves with a few loose leaves free to move in it, the leaves commonly accumulate in the center (axially) of the bottom of the cup. a. Why, since leaves are more dense than the tea, do they not end up peripherally located as a result of centrifugal action

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.

your answer is going to be physical weathering