Which device provides evidence that earth rotates on its axis?

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

Which statement best describes how chemical equations demonstrate conservation of mass?

East asia is considered a less developed nation. true or false