1. One degree of the circumference of the earth measures(approx.) :

2. Lunar eclipse is caused when the: [Hotel Management 1991]

3. Which part of the earth's surface receives the highest amount of insolation?

4. In the earliest days when life originated on earth - the atmosphere contained : [UDC 1993]

5. Through which one of the following countries the Tropic of Cancer does not pass through? [CDS 2005]

6. Tides in the sea have stored in them: [CDS 1994]

7. The sun reaches its maximum angular distance from the equator at the:

8. On the 21st June - the day light is seen at the North Pole for:

9. Heat received by earth from the Sun is known as:

10. Which of the following is/are true of world time zones? 1. The world is divided into thirty time zones 2. All time zones of the world are described in term of the number of hours difference between the standard meridian of that zone and the Greenwich Meridian 3. All countries have more than one time zone 4. The time for all places east of Greenwich is designated slow - and time for all places left of Greenwich is designated fast

11. The earth is at the least distance from the sun (Perihelion) on :

12. What is the correct sequence of the following in the context of the age of the earth since its origin? 1. Cenozoic 2. Mesozoic 3. Palaeozoic 4. Protozoic

13. Lunar eclipse occurs on :

14. Which of the following pairs is not correctly matched? [NDA 1993]

15. The Tropic of Cancer passes through: [CPO AC 2003]

16. In how many time zones has the world been divided into?

17. Owing to the equatorial bulge and the polar flattening - the polar radius of the earth falls short of the equatorial radius by about: [NDA 1991]

18. Which of the following best describes longitude?

19. When it is nine o'clock in London - it will be the same time in :

20. The mean radius of the earth is approximately:

21. Which one of the following elements is most abundant in the earth's crust? [NDA 2005]

22. The word used to describe the shape of earth is:

23. At the summer solstice - which one of the following latitudes will have the longest night? [NDA 2001]

24. Days and nights are caused by : 1. rotation of the earth on its axis 2. revolution of the earth around the sun 3. inclination of the earth's axis

25. Which of the following is not an effect produced by rotation of earth?