Question

Which line is known as the Prime Meridian? State its importance.

ICSE Class 9 Total Geography Ch 2:Geographic Grid- Latitudes and Longitudes

Answer 1

Answer:

Also known as “Greenwich Meridian”, or “the International date line” is a meridian of longitude zero degrees, it is an imaginary line of human invention that divides the earth into "eastern" and "western" hemispheres. In 1884, an international agreement was held where Greenwich Meridian was chosen to represent a "Global Standardised Time" as more than 43 countries used Greenwich as their navigational baseline.

It passes through longitude zero and connects the northern and the southern poles by passing through the “Royal Greenwich Observatory”, a former astronomical observatory. The importance is that it sets a standardised time zone system, now called "universal time". With every 15 degrees, you move to the west, the time is one hour earlier to the standard time and one hour late to fifteen degrees eastward. It is the centre most point of 24 time zones of the world.

Answer 2

Explanation:

heeeeeeeeyyyyyyy broooooo