Sink holes may eventually for to join a. wide valleys b. zone of aeration c. dripstones d. aquifer

Dubai is challenged by all of the following environmental factors except a. a warm and dry climate b. a lack of annual rainfall c. scarce freshwater resources d. a lack of valuable natural resources

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

The nations of indochina a. share a common langauge b. share a common history c. share a common religion d. none of the above