Inventions and improvements in the north 1800

there were many great new inventions in the late 1800s, including the telephone, the escalator, the motion picture, the typewriter and certain vaccines. there were so many new technologies invented that u.s. patents increased from 30,000 to 640,167 by the 1900s.

explanation:

c-three

explanation:

legislative, executive and judicial

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: