The basis for defining the length of a day is the fact that
A) Earth rotates on its axis in 24 hours; i.e., it rotates 15 of longitude per hour.
B) Earth does not rotate; rather, it revolves.
C) Earth rotates east to west.
D) Earth moves through 365.25 days a year in its orbit about the Sun.
Question 2
Which of the following is TRUE regarding the 0 prime meridian?
A) International agreement regarding the location of the prime meridian was not resolved until the 1980s when a treaty was completed.
B) The key to measuring angular distances east and west of the prime meridian was the development of accurate compasses.
C) The prime meridian passes through Paris, France.
D) Earth's prime meridian passes through the old Royal Observatory at Greenwich, England, as set by an 1884 treaty.