Question

10. You are at 76° west longitude, 37° north latitude, and observe the sun to rise at 05:10:20 hours local clock time. Your friend is at 87° west longitude and 49° north latitude. What will be your clock time when she sees the sun rise?

Answer 1

The earth is almost like sphere. The rotation of earth on its axis from west to east led to two reference points, South pole and North pole. This reference point helps in finding the relative position of different points on the globe.

Geographical grid- it is network of intersecting lines which are imaginary on the globe. It is intersection of vertical and horizontal line named as

• Parallel of latitude
• Meridian of longitude
• Horizontal lines are parallel to each other from east to west direction. The line which is read the middle of North and South pole called equator.

Equator divide earth globe in two equal half.

• Vertical line from north to south join two poles North and South respectively. THESE LINE ARE CALLED MERIDIAN OF LONGITUDE.

THE EARTH TAKES 24 HOURS TO MAKE ONE ROTATION FROM WEST TO EAST ON ITS OWN AXIS. ARE WE CAN SAY IT TAKES 24 HOURS TO COMPLETE ONE CIRCLE 360°.

SUN TAKE 12 HOURS TO COVER EACH HEMISPHERE-EASTERN AND WESTERN HEMISPHERE.