although mexico won its independence from spain in 1821, in what year did the mexican revolution begin? a) 1910 b) 1915 c) 1920 d) 1925the answer is  a) 1910  couldn't find it so solved it myself enjoy the free points : )

a. the astrolabe could determine the correct latitudinal location of the ship

answer: in october 1962, an american u-2 spy plane secretly photographed nuclear missile sites being built by the soviet union on the island of cuba. president kennedy did not want the soviet union and cuba to know that he had discovered the missiles. he met in secret with his advisors for several days to discuss the problem.

explanation: