1. Bacteria are kept in separate kingdom called

2. Convection occurs only in.

3. Deficiency of vitamin_A results in?

4. Electron was discovered by?

5. Air contain.................. Nitrogen

6. Largest bird in the world is

7. Animals are called

8. The animals which kill and hunt other animals for food called

9. Leaves are narrow and pointed

10. Ability to do work is called

12. Rusting of iron involves...................?

13. Plants are called

14. Voltmeter is used for measurement of............

15. Gear system is an advanced shape of

16. The number of protons present in the nucleus of one atom of any element is called its

17. The speed of sound is........... Meter per second in iron

18. Hailey's comet is visible after every...............?

20. Ded red blood corpuscles are stored in.......?

21. The number of naturally occurring elements is

22. The largest artery is named as

26. Cactus is found in

27. Animals are divided into _ large subgroups

29. The whorl of sepals is called..........

30. What is the largest gland in the human body?

31. Boiling of an egg is change which is.............?

33. Olfactory nerves links....... and...........

34. Algae Clour is

35. The study of Plants and animals is called

36. According to ............. Law Resistance is calculated by dividing voltage by current

37. The valency of carbon atom is.............?

38. The mirror used in the Automobiles are................?

39. What is present in gastric juice?

40. Dead plants and animals are

41. The formation of ghee from vegetable oil is an example of.............

42. ............... React chemically with fat or oil to form soap

43. The international system of units was introduced in

44. The perpendicular force acting on unit surface area of an object is called...............?

45. The heaviest naturally occurring element is..............?

46. Rate of flow of charge is called

47. The part of the solution which is less in quantity called

48. ............... are reproductive organs of plants.

49. ....................... Is a friendly relationship between two organisms

50. The biotic components of the environment Include..............