The movement of tectonic plates is inferred by many scientists to be driven by A) s solidification in the lithosphere
B) density differences in the troposphere
C) convection currents in the asthenosphere
D) tidal motions in the hydrosphere

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