WHY YOU just do not tell me the letter of the answer

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

In what way does renewable energy differ form nonrenewable energy?

What is the process that powers plate tectonics