The author mentions the role climate change played in the downtall of the Roman Empire and the Han Dynasty, In what ways right the world be different today if these two civilizations had NOT BEEN impacted by climate changes

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