Author Question: Time changes by one hour for each 15 degree change in longitude; this is because A) it was ... (Read 18 times)

FButt · **on:** Jul 14, 2018

Time changes by one hour for each 15 degree change in longitude; this is because

A) it was determined by how fast 17th century ships could travel.
B) 15 insures that major population centers have unique time zones.
C) early navigation instruments did not allow better accuracy than 15 degrees.
D) 15 was chosen arbitrarily.
E) twenty-four latitude lines were chosen so that 24 hours represents a 360 revolution around
the planet.

Question 2

What determines the smallest feature that a Geographic Information System (GIS) can detect?

A) depends on the computer power of the GIS system
B) determined by the resolution of the scanner used for the remote sensing
C) determined by the altitude of the satellites
D) established by the NASA rules and regulations
E) military specification