The theory of plate tectonics states that the earth's crust is composed of many plates that move gradually across the earth's surface.   select the best answer from the choices provided. true or false

What statement about charlemagne is not true? a. charlemagne's empire collapsed during his rule b. charlemagne sent missionaries throughout europe c. charlemagne encouraged the arts and education d. charlemagne ruled much of western europe a. charlemagne's empire collapsed during his rule