Multiple Choice
Eratosthenes was the first person to accurately estimate the size of Earth.He accomplished this feat by ________.
A) sailing around the world and estimating his average rate of travel
B) comparing the length of an Earth day with the distance between the Earth and the Sun
C) measuring the severity of the greatest earthquakes
D) observing shadows simultaneously cast at two different cities that were separated by a known distance
Correct Answer:

Verified
Correct Answer:
Verified
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