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  1. Shoemaker-Levy 9 is a
  2. One Astronomical Unit is the average distance between
  3. When does the Vernal Equinox occur?
  4. A leap year consists of
  5. What is the difference between a lake and a tank?
  6. Which of the following planets is called 'blue planet'?
  7. Speed of the revolution of the earth is___'
  8. When dees the Summer Solstice occur?
  9. Our Solar System is an orderly community of _____.
  10. What happens when ships cross the International Date Line?
  11. Rapidly rotating stars emitting intense radio waves are called ___.
  12. Period of sunspot cycle is
  13. The time taken by the sun to revolve around the centre or our galaxy is
  14. On which date is the Earth in 'aphelion'?
  15. An imaginary belt of 12 constellations or group of stars la called
  16. A system of millions and millions of galaxies are called _____.
  17. Consider the following statements regarding asteroids:1. Asteroids are rocky debris of varying sizes…
  18. A celestial body which revolves round the Sun and receives heat and light from it is called _____.
  19. How much time (approximately) does the light from the nearest star to the Sun take in reaching the earth?
  20. How much time does earth take in making one rotation on its axis with respect to a fixed star at infinite…
  21. What is the geographical term for land's end, that tip of land which projects into the sea?
  22. A celestial body consisting of a gaseous cloud enveloping a bright nucleus moving around the Sun in…
  23. What does perigee mean?
  24. What is peninsula?
  25. A 'black hole' is a body in space which does not allow any radiation to come out. This property is due…
  26. What proportion of the mass of the earth does the mass of the Moon equal?
  27. How much time does the earth take in completing one rotation on its axis in relation to sun?
  28. Which star la called the brightest star (Dog star)?
  29. Which planet la known as a 'Morning Star' as well as an 'Evening Star'?
  30. Which of the following are the Inner Planets?1. Mercury2. Venus3. Earth4. Mars