Greenwich Meridian is used to fix the World Standard Time. Which line of longitude is used to fix the World Standard Time ? State its value in degrees. On the other hand the regions between 23 1/2° N – 66 1/2° N and 23 1/2° S – 66 1/2° S will get temperate climate, while the regions known as Arctic and Antarctic circles get very cold polar climate as Tundra region.ġ2. The region within 23 1/2° N and 23 1/2° S will get tropical climate with ample temperature and rainfall. The temperature decreases northwards and southwards from the equator. How can the general climate of an area be described with the help of the lines of latitudes ? (Greenwich Meridian Time) The earth takes 4 minutes for moving 1° distance.ġ1. So it is the basic Meridian and time is written as G.M.T. The time is calculated with respect to this Meridian. Greenwich Meridian is called the ‘Prime Meridian’ or the 0° longitude. Which line is known as the Prime Meridian ? State its importance. The Tropical zone gets vertical rays of the sun, while temperate and polar zones receive slanting rays of the sun.ġ0. Which temperature zone receives almost vertical rays of the sun and which zones receive slanting rays ? With the help of degrees, name the important lines of latitude.ĩ. The thermal zones of the earth are Tropical, Temperate and Polar zones.Ĩ. Express 1° angular distance in kilometres.Īs the circumference or the equator is nearly about 40,000 km. Northern hemisphere and Southern hemisphere.Ħ. Name the two hemispheres of the earth made by the Equator.
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