Question

why meridians are important?

Answer 1

Meridians are the boundary lines of imaginary circles drawn around the earth. 23 1/2° N Latitude is the Tropic of Capricorn. Prime meridian is also known as the Greenwich Meridian. The two parallels, the tropic of Capricorn and the Antarctic Circle lie between the equator and the South Pole.

Answer 2

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A Meridian is a longitude. All longitudes are of same importance but with the help of prime meridian(0°longitude) we can navigate whether we are going east or west. You may say prime meridian is the boundary line of East and West on the earth. It is also helpful in determining time zone .