What was Copernicus's theory about astronomy?

Heliocentrist

Explanation: Copernicus was one of the earliest people to support the notion of a heliocentric solar system with the sun as the center of the solar system instead of the the former geocentric theory supported by the catholic church

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bilateral multipolar bipolar unilateral

after world war ii, the united states and the soviet union were the major economic, military, and political powers. the world was bipolar.  

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true false

the great leap forward, mao zedong's plan to increase china's agricultural and industrial production, was an overwhelming success. true.

explanation: