My Answer was :


1. Convection
2. No
3. pedometer
4. Distance
5. N,P,K
6. Artificial Radioactivity
7. Not a solid while iron is a solid
8. 1120 ft
9. Pitch
10. Transparent
11. 3 feet
12. Supersonic
13. Fusion nuclear reaction
14. Distance
15. Zn + Ni ( Correct Cu + Zn + Ni)
16. North pole
17. Temperature of the place where it is kept
18. Milk
19. None of these
20. Mangrove
21. Interference of light
22. Increasing focal length of the lens
23. Copper , Tin
24. Malaysia
25. Stress
26. An equal and opposite pressure acts from inside
27. Current
28. 7 miles per sec
29. Infrared Light
30. Concave lens
31. Work done
32. Richter Scale
33. 88 days
34. Primitive
35. A continuing process
36. Independent assortment
37. Dominant genes
38. Ingestion , digestion , absorption , elimination
39. Small intestine
40. Basal Metabolism
41. Monosaccharide
42. Larynx
43. Budding
44.
45. Nitrogen + Oxygen
46. Water
47. Control Unit
48. Carbon ( Correct Oxygen)
49. Antibodies and chemotherapy
50. Starch