What animal did scientists study to create the brain-machine interface

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

Pollution from one country can affect another. for example, south korea is especially affected by pollution and dust storms that come from

Lake victoria lies on its southern border. true or false