1. Triton is the satellite of

2. First man made satellite launched into space is LI

3. The time required by the moon to get one complete revolution around the earth in its orbit is called

4. Atmosphere contains huge solid and liquid particle called

5. Group of stars having own its orbit is called

6. Acid rain contains

7. Wind speed is measured by

8. The duration of bright half is

9. Meteoroids are also called

10. The loss of water vapour present in the atmosphere is

11. Erosion and deposition is known as

12. Which of the following is the coldest region ?

13. 1 light year is

14. The year having 366 days is called

15. Closest and smallest plant is

16. The duration of synodic month is

17. The branch of science which deals with the study of universe is

18. The sudden movement of the rocks and soil under the action of gravity is called

19. Depletion of ozone layer causes

20. Farthest planets is

21. The surface at which earthquake originates is

22. Hot climate as well as most rainfall is found in

23. Which of among below, is fertile plain?

24. The ozone layer is depleted by

25. Earth revolves around the sun in

26. Which is not pollution ?

27. Which has greatest affinity for haemoglobin ?

28. Dinosaur as well as advanced animals are found in

29. The time period for the rotation of the earth is

30. Shooting stars are called

31. Nowadays solar system consists of

32. Which of the following is the uppermost region of the atmosphere ?

33. The number of constellation is

34. Which of the following is a secondary pollutant ?

35. The first person stepped on the moon is

36. Ozone layer is present in

37. The brightest and hottest planet is

38. The instrument which detects the wave of earthquake is called

39. Pollution of sea water is called

40. In which region of the atmosphere, temperature decreases with altitude ?

41. Titan is satellite of

42. Death of star means

43. Oil mixed with valuable material are

44. Nitrogen oxides mix with water droplet in clouds and form

45. Plant body is bent due to mustard cold is

46. The rocks in the molten state are called

47. Moon is the satellite of

48. Which of the following is not a green house gas ?

49. Outer layer of earth surface is

50. The closest galaxy to the milky way galaxy is

51. Water cycle consist of one stage in the atmosphere is

52. The most abundant hydrocarbon pollutant is

53. Which of the following is present in maximum amount in acid rain ?

54. A rapidly spinning neutron star is surrounded by an extremely powerful magnetic field that spins with it, so called