Answer:
<u>Archimedes: </u>
B. he created the pulley and lever system
D. he figured out how to determine the volume of any object using water
<u>Eratosthenes:</u>
A. he estimated the circumference of the earth
C. he observed the earth is round
<u>Hippocrates:</u>
E. he tried to find the causes of illness
F. he created ethical standards for doctors to follow.
Explanation:
Archimedes was a Greek physicist, engineer, inventor, astronomer, and mathematician from the 3rd century BCE. He is considered as one of the greatest scientists and inventors of history. He is known for determining the volume of any object by submerging the object into water and for inventing the pulley and the lever, among other inventions.
Eratosthenes was a Greek mathematician, astronomer, and geographer who lived in the 3rd century BCE. He worked in the Library of Alexandria and there he calculated the diameter of the Earth and its circumference by using simple trigonometry.
Hippocrates was a Greek physician who lived in the 5th century BCE. Due to his deep studies on the causes of illness, he is regarded as the father of medicine. Even today, doctor from all over the world follow the ethical standards of medicine that he created.
