A geographical grid has:

1. Lines that run east to west around the globe to mark latitude

2. Lines that run north to south from north pole to south pole indicate longitude

Which of the statements given above is/are correct?

The correct answer is Both 1 and 2.Key Points

• Lines of Latitude:
  • These are the lines that run east to west around the globe.
  • They are horizontal lines and measure the distance north or south from the equator.
  • Latitude is expressed in degrees. The equator is the reference line with 0° latitude, and the lines are numberedup to 90° N (north of the equator) and 90° S (south of the equator).
• Lines of Longitude:
  • These are the lines that run north to south from the North Pole to the South Pole.
  • They are vertical lines and measure the distance east or west from the Prime Meridian.
  • Longitude is also expressed in degrees.
  • The Prime Meridian is the reference line with 0° longitude, and the lines are numbered up to 180° E (east of the Prime Meridian) and 180° W (west of the Prime Meridian).
  • The equator is the main reference line with 0° latitude.

Additional Information

• Lines of Latitude:
  • There are a total of 90 latitudinal lines in the northern hemisphere, numbered from 0° to 90° N.
  • Similarly, there are 90 latitudinal lines in the southern hemisphere, numbered from 0° to 90° S.
  • The North Pole is at 90° N, and the South Pole is at 90° S.
  • So, there are a total of
  • 90+90+1
  • 90+90+1 latitudinal lines, including the equator.
• Lines of Longitude:
  • The Prime Meridian is the main reference line with 0° longitude.
  • There are a total of 180 longitudinal lines to the east of the Prime Meridian, numbered from 0° to 180° E.
  • Similarly, there are 180 longitudinal lines to the west of the Prime Meridian, numbered from 0° to 180° W.
  • So, there are a total of
  • 180+180+1
  • 180+180+1 longitudinal lines, including the Prime Meridian.