GPS Units Are
A)accurate Within 10 M $\frac { 1 } { 60 }$

Multiple Choice

GPS units are

A) accurate within 10 m.
B) a metric version of longitude and latitude.
C) $\frac { 1 } { 60 }$ th of a Greenwich Precision Second.
D) not available to the public they are only available to the military.
E) can be used to measure the speed of objects travelling outside Earth's atmosphere.