In a untary system of government, power is
O held by state governments.
O held by a central govemment
O held by a single person.
O held by a group of people

Held by a central government

Explanation:

Correct on edg

b. the passage of the equal rights amendment  

explanation:

this mean that anything that someone else could do they could do

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.