Topic outline

    • Globe - Latitudes and Longitudes

      Q1. Fill in the blanks.

                                 i.        The Frigid Zone lies near the Poles.

                                ii.        The Antarctic Circle is located in the southern hemisphere.

                               iii.        The Standard Meridian of India is 82½ degree east.

                               iv.        The 0° Meridian is also known as Prime Meridian.

                                v.        The southern half is known as the Southern Hemisphere.


      Q2. True/False

                                  i.        Tropic of Capricorn in the Southern Hemisphere. True

                                 ii.        The distance between the longitudes decreases towards the poles. True

                                iii.        The Arctic Circle is located in the southern hemisphere. False

                                iv.        The northern half of the earth is known as the Southern Hemisphere. False

                                 v.        90 degrees north latitude marks the North Pole and 90 degrees south latitude marks the South Pole. True

      Q3. How many lines of longitude are there in total?

      Ans. 360


      Q4. How many latitudes are there in total?

      Ans. 180


      Q5. What is the value of the prime meridian?

      Ans. The value of the prime meridian is zero degree.


      Q6. What is the latitudinal value of the Tropic of Cancer?

      Ans. The latitudinal value of the Tropic of Cancer is 23½ degrees north.


      Q7. What is a grid?

      Ans. Grid is a network of parallels of latitudes and meridians of longitudes.


      Q8. What are the three heat zones of the Earth?

      Ans. The three heat zones of the Earth are Torrid Zone, Temperate Zones and Frigid Zones.


      Q9. What is the true shape of the earth?

      Ans. Earth is not a sphere. It is slightly flattened at the North and the South Poles and bulge in the middle.

      Q10. What is prime meridian?

      Ans. Meridian which passes through Greenwich, where the British Royal Observatory is located is called the Prime Meridian.


      Q11. What do you mean by the term equator?

      Ans. An imaginary line running on the globe divides it into two equal parts. This line is known as the equator.


      Q12. What is a globe?

      Ans. Globe is a true model (miniature form) of the earth. On the globe, countries, continents and oceans are shown in their correct size.


      Q13. Why is it 5.30 p.m. in India and 12.00 noon in London?

      Ans. India located east of Greenwich at 82°30'E is 5 hours and 30 minutes ahead of GMT. So it will be 5:30 p.m. in India when it is 12:00 noon in London.


      Q14. Why does the Torrid Zone receive maximum amount of heat?

      Ans. The mid-day sun is exactly overhead at least once a year on all latitudes in between the Tropic of Cancer and the Tropic of Capricorn. This area, therefore, receives the maximum heat and is called the Torrid Zone.

      Q15. Which longitude is treated as the standard meridian for India?

      Ans. In India, the longitude of 82­.50° E (82° 30'E) is treated as the standard meridian. The local time at this meridian is taken as the standard time for the whole country. It is known as the Indian Standard Time (IST).


      Q16. Which heat zone do these places lie in?
      10 degree north, 25 degree south and 89 degree south

      Ans. 10 degree north – Torrid Zone

      25 degree south – South Temperate Zone

      89 degree south – Frigid Zone


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