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.

A. He estimated the circumference of Earth.

Explanation:

Eratosthenes' most famous contribution to science was his calculation of the circumference of the Earth, which he completed while working on the second volume of his "Geography."

Know more about the numerous contributions of Archimedes through his 10 major achievements. One of the most famous contributions of Archimedes is the Archimedes’ principle. It is said to have been found by him when he was tasked to determine the purity of the gold crown of King Hiero II of Syracuse

lincoln declared that slavery should not be allowed to spread into the new states, and of course this angered the south at the time.