Question

what is longitude ?
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Answer 1

Answer:

the distance of a place east or west of a line from the North Pole to the South Pole that passes through Greenwich in London. Longitude is measured in degrees

Explanation:

PLS MARK AS BRAINLIST PLS

Answer 2

Answer:

Longitude is time and is just a way to describe a place on the earth in a east to west direction. Whereas latitude has a physical baseline, the equator or midline of a spinning sphere, the zero longitude is arbitrary. This is what made ocean navigation in an east-west direction so difficult until time could be kept accurately on a ship. Why time? The earth rotates on its north-south axis one complete turn in 24 hours (one day). {okay, not precisely but this is a basic explanation] Say the sun is directly overhead so we will call this noon or midday. People east and west of you will have the sun at an angle and not overhead.

Because we know that the earth travels one complete "circle" in 24 hours, and a circle has 360 degrees, the sun will change its overhead position by 15 degrees (360/24) each hour. This is the premise for time zones. Each time zone occupies 15 degrees of longitude, although geopolitics muddies the lines a bit.

So why is the zero longitude in Greenwich, England? In 1884, the primary globally navigating countries were European and they were also the ones making navigation charts. Twenty-five countries met to determine where to place the zero longitude line and voted for Greenwich where an important observatory was located. This observatory was the basis for many of the navigation charts used by the majority of ocean navigators at the time.