Geometry area and perimeter help plz :(

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain

Many rivers in central asia come from

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