Author Question: Who was the first person to estimate the size of the Earth within approximately 8 of its true size ... (Read 76 times)

bobbie · **on:** Aug 22, 2018

Who was the first person to estimate the size of the Earth within approximately 8 of its true size based on the geometric observations of travelers?
A) Captain James Cook of the British Royal Navy
B) Eratosthenes of Cyrene
C) U.S. naval officer Matthew Maury
D) The Polynesians

Question 2

As pure water approaches its freezing point, the density decreases. Why does this happen?
A) The water compresses into ice.
B) The hydrogen bonds become rigid, allowing it to expand slightly.
C) The hydrogen bonds break as the molecules compress.
D) Ice takes up a smaller surface area than liquid water.