1. Leaves are narrow and pointed

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

4. The international system of units was introduced in

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

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

7. Animals are divided into _ large subgroups

8. Electron was discovered by?

9. Voltmeter is used for measurement of............

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

11. ............... are reproductive organs of plants.

13. Rusting of iron involves...................?

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

15. Deficiency of vitamin_A results in?

16. The study of Plants and animals is called

17. Ability to do work is called

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

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

20. Rate of flow of charge is called

21. Plants are called

22. Air contain.................. Nitrogen

23. Algae Clour is

25. Bacteria are kept in separate kingdom called

27. The whorl of sepals is called..........

28. The largest artery is named as

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

30. Gear system is an advanced shape of

31. Olfactory nerves links....... and...........

32. Cactus is found in

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

35. The number of naturally occurring elements is

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

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

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

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

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

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

43. Dead plants and animals are

44. Largest bird in the world is

45. What is present in gastric juice?

46. Animals are called

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

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

50. Convection occurs only in.