Question

What does Greenwich Mean Time (GMT) refer to?

a) The time in that zone encompassing the International Date Line.
b) The numbering system used to indicate locations of meridians.
c) The time at the prime meridian.
d) A type of mental map.

Answer 1

Greenwich Mean Time (GMT) refers to the time at the prime meridian in Greenwich, England.

Step-by-step explanation:

Greenwich Mean Time (GMT) refers to c) the time at the prime meridian. GMT is the time zone that is based on the local time at 0 degrees longitude, which is the prime meridian located in Greenwich, England.

It is used as a reference for coordinating international activities and is the standard time for many purposes such as military operations, international radio broadcasts, and air traffic control systems.