Question

In order to locate a place precisely, we must find out how far east or west the place is from a given lines of reference running from the North Pole to the South Pole. What are these lines of reference known as? How do they help us in calculating time?

Answer 1

These lines running from North Pole to the South Pole are called longitudinal lines

Explanation:

• The lines running from the North pole to the south pole are called Longitudinal lines.

• The longitudinal and latitudinal lines are termed as the geographical coordinates. These lines provide a systematic network of lines that are used to draw various features of Earth on the map.

• It helps to calculate time because Sun takes 24 hours to revolve around the Earth or to complete 360 degree. So, we say that sun traverses 150 degree of  longitudes per hour or one degree of longitude in every four minutes of  time.