1. Animals are divided into _ large subgroups

2. The international system of units was introduced in

3. Leaves are narrow and pointed

4. Rate of flow of charge is called

5. Gear system is an advanced shape of

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

7. Air contain.................. Nitrogen

8. Deficiency of vitamin_A results in?

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

10. The whorl of sepals is called..........

12. Dead plants and animals are

14. Algae Clour is

15. The number of naturally occurring elements is

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

18. ............... are reproductive organs of plants.

19. Ability to do work is called

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

21. Convection occurs only in.

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

23. What is present in gastric juice?

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

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

27. Plants are called

28. The study of Plants and animals is called

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

30. Rusting of iron involves...................?

31. Cactus is found in

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

33. Electron was discovered by?

34. Bacteria are kept in separate kingdom called

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

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

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

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

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

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

41. Largest bird in the world is

42. Animals are called

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

46. Voltmeter is used for measurement of............

47. Olfactory nerves links....... and...........

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

49. The largest artery is named as