Meridians

Meridians are imaginary lines that run around the Earth vertically (up and down) and meet at the North and South Poles.

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The 0° Meridian divides the Earth into East and West

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• INCORRECT

The Prime Meridian of the World is called Greenwich because it passes through a city in England called like that.

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• NO

The distance around the Earth measures 360 degrees, so there are 360 meridians: 180 to the East and 180 to the West. Each of them represents a degree of Longitude.

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Longitude lines are a numerical way to show/measure how far a location is east or west of a universal vertical line called the Prime Meridian.

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The Greenwich meridian also serves as the basis for the world's standard time zone system.

• CORRECT

• INCORRECT

Every gain or loss of 1° longitude stands for 4 minutes. So add them when you move east of Greenwich Meridian or substract them when you move west of the G.M.

• TRUE

• FALSE

The Prime Meridian (Greenwich) divides the Earth into East/West from the North Pole to the South Pole with an imaginary line along the longitude line of 0°

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• NO

This Prime Meridian line runs vertically, north and south, right over Greenwich in England, from the North Pole to the South Pole.

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So, the meridians are vertical imaginary lines which divide the Earth in East and West hemispheres. The Prime Meridian is the Meridian 0°called Greenwich Meridional.

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