Name two chinese inventions of the pre-modern period

all of the above.

had this on a quiz and got it right.

the answer to this question is the third option. hope this

john maynrd keynes developed new economic respose to the                           ( b. great depression if the 1930's)

copernicus finished the first manuscript of his book, "de revolutionibus orbium coelestium" ("on the revolutions of the heavenly spheres") in 1532. in it, copernicus established that the planets orbited the sun rather than the earth. he laid out his model of the solar system and the path of the planets.