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

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

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

4. What is present in gastric juice?

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

6. Leaves are narrow and pointed

7. Animals are called

8. Rusting of iron involves...................?

9. Plants are called

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

11. Convection occurs only in.

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

13. Olfactory nerves links....... and...........

14. Rate of flow of charge is called

15. The study of Plants and animals is called

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

17. Gear system is an advanced shape of

18. Deficiency of vitamin_A results in?

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

20. Algae Clour is

21. Electron was discovered by?

22. The international system of units was introduced in

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

24. The number of naturally occurring elements is

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

26. Animals are divided into _ large subgroups

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

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

31. Dead plants and animals are

32. Cactus is found in

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

35. The largest artery is named as

36. Voltmeter is used for measurement of............

38. Largest bird in the world is

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

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

41. ............... are reproductive organs of plants.

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

44. Ability to do work is called

45. Bacteria are kept in separate kingdom called

47. Air contain.................. Nitrogen

49. The whorl of sepals is called..........

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