How did ancient Greeks such as Aristotle know that Earth is round?
A) The shadow cast by Earth on the moon during an eclipse is the shape that would be expected if both Earth and the moon were spherical.
B) By noting that ships drop below the horizon as they go out to sea.
C) Travelers reported that, in northern lands, the noontime sun is lower in the sky.
D) All of the above.
E) Actually, the ancient Greeks thought that Earth is flat.

Question

Quizplus · Accepted Answer

The ancient Greeks, including Aristotle, used multiple observations to conclude that Earth is round: the circular shadow on the moon during a lunar eclipse, the way ships disappear hull-first over the horizon, and the change in the sun's position with latitude.

How Did Ancient Greeks Such as Aristotle Know That Earth