Latitude and Temperature Zones

. As the earth is spherical, different parts of th tend to get heated to different degrees. The sun's r concentrated more directly in the region round the e So the temperature is higher in these regions. So w from the equator, due to the curvature of the eal
sun's rays strike the earth's surface at an angle and, spread over a larger area. So these regions do fit to the same extent as do the equatorial region temperature thus decreases from the equator to the poles.

A place can be most accurately and precisely II when both its latitude and longitude are given.
DISTANCE The actual length, in kilometres, of a c of longitude will depend upon where it is measun tr.e equator this distance may be computed by dividing the circumference of the earth by 360°; i.e., 40,075 km/3 111 km (approximately). It is useful to remember th length of 1° of longitude is reduced by about one-h the 60th parallels. The length of a degree of latitu almost the same as the length of 1° of longitude, equator, j.e., about 111 km.

It is important to have universally accepted un measurement for length or distance which maybe by both air and marine navigators. The 'internal nautical mile' is defined as exactly equivalent to
international metres or 6076.1033 feet. One nautical IT equal to 1.15077 statute miles. It has been proved tha nautical mile very closely approximates the average IE of one minute of latitude.