Identify the contributions made by Archimedes, Eratosthenes, and Hippocrates during the Hellenistic era. - He estimated the circumference of Earth.
- He created a lever and pulley system to carry heavy objects.
- He observed that Earth is round.
- He figured out how to determine the volume of any object using water.
- He tried to find the causes of illnesses.
- He created ethical standards for doctors to follow.

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: