Gk questions answers about science
1. question: Pedol . Pedology is the study of-
answer: Soil
2. question: Transplantation of heart is first done by -
answer: Dr. Christiaan Barnard.
3. question: The hardest part of human body is -
answer: Enamel.
4. question: The strongest muscle of man found in -
answer: Jaw
5. question: Who discovered the first antibiotic ?
answer: Alexander Fleming.
6. question: Normal blood pressure reading of an adult human is -
answer: 120/80 mmHg
7. question: In the human body, which of the following organs is responsible for water balance?
answer: Kidneys
8. question: Dialysis is used to perform the function of -
answer: Kidney
9. question: Nephrology is the study of -
answer: Kidney
10. question: Main function of white blood corpuscles is -
answer: To produce immune system of body.
11. question: Red blood corpuscles is produced into -
answer: Bone marrow.
12. question: Red colour of blood is due to presence of -
answer: Haemoglobin.
13. question: Metal present in haemoglobin -
answer: Iron
14. question: Function of haemoglobin is -
answer: To transport oxygen.
15. question: Haemoglobin is an important component of -
answer: RBC
16. question: Digestion started in man from -
answer: Mouth
17. question: Which of the following is necessary for digestion of food?
answer: Enzyme
18. question: Most of the digestion occur in which part of alimentary canal of man-
answer: Small intestine.
19. question: White clothes are cooler than black ones because they
answer: reflect all the light that reaches them.
20. question: Metal tea pots have wooden handles because
answer: wood is a bad conductor of heat.
21. question: One cannot see through fog because
answer: light is scattered by the droplets in fog.
22. question: Soap helps in cleaning the clothes because -
answer: It reduces the surface tension of solution.
23. question: Lungs of a plant are -
answer: Leaves
24. question: Cactus is referred to as -
answer: Xerophyte
25. question: Which plant is called Herbal-Indian Doctor?
answer: Tulsi
26. question: Bamboo is classified as -
answer: Grass
27. question: Coffee is obtained from which part of plant?
answer: Seed
28. question: At hill station, the boiling point of water will be
answer: Less than that at sea levelOW Everything.
29. question: The boiling point of water decreases at higher altitudes is due to-
answer: Low atmospheric pressure.
30. question: When a gas is turned into a liquid, the process is called -
answer: Condensation.
31. question: Which of the following gases is present under pressure in soft drinks?
answer: Carbon dioxide.
32. question: Which blood vessels carry pure blood from the lungs to the heart?
answer: Pulmonary veins.
33. question: The gas essential for protein synthesis is -
answer: N2
34. question: Which gas is essential for photosynthesis?
answer: CO2
35. question: For the growth in length of plant which of the following is not essential -
answer: Sodium
36. question: Process by which plant prepare their food is -
answer: Photosynthesis.
37. question: Photosynthesis is fastest in-
answer: Red light.
38. question: Which of the following plays an important role in photosynthesis?
answer: Chloroplast
39. question: An element present in chlorophyll-
answer: Mg
40. question: The oxygen liberated during photosynthesis comes from
answer: Water
41. question: Red rod of sugarcane is caused by -
answer: Colletotrichum falcatum.
42. question: For a colour blind person red colour appear as
answer: Green
43. question: In human body, ligaments are made up of -
answer: Yellow fibres
44. question: The confirmatory test for HIV virus causing AIDS is :
answer: ELISA test
45. question: Phosphorus is an essential constituent of -
answer: Nucleic acids.
46. question: Which one of the following gases has colour?
answer: Chlorine
47. question: Purest form of iron is -
answer: wrought iron.
48. question: The three basic components of an atom are -
answer: electron, neutrons and protons.
49. question: The sky is blue because of -
answer: Scattering
50. question: The blue colour of the water in the sea is due to -
answer: Reflection of blue sky by the sea water.
51. question: Which gas is used in refrigerator to cool water?
answer: Ammonia
52. question: The Sun is a-
answer: Star.
53. question: GPS is an abbreviation for-
answer: Global Positioning System.
54. question: The common mineral salt present in our sweat is-
answer: Sodium chloride.
55. question: Study of life in outer space is known as-
answer: Exobiology
56. question: What is the main component of bones and teeth?
answer: Calcium Phosphate.
57. question: How many bones are there in a newly born child?
answer: 300
58. question: Dialysis is used for the treatment of-
answer: Kidney failure.
59. question: What is the speed of light?
answer: 300,000 km/second.
60. question: Hailey's Comet is visible after every-
answer: 76 years.
61. question: Big Bang theory explains-
answer: Origin of Universe.
62. question: In Eye donation, which part of the eye used?
answer: Cornea.
63. question: The post-mortem examination of a body after death is called-
answer: Autopsy.
64. question: Insufficient blood supply in human body is referred as-
answer: Ischemia.
65. question: How many times the sun is bigger than the earth?
answer: 109 times.
66. question: The process of removing waste products from the body is known as-
answer: Excretion.
67. question: The structural and functional unit of Kidney is called-
answer: Nephron.
68. question: The structural and functional units of nervous system are called-
answer: Neuron.
69. question: What is the major organ of the respiratory system?
answer: Lungs.
70. question: Skin Cancer is the cause of-
answer: Ultraviolet-rays.
71. question: The vitamin that is mostly manufactured in our bodies is-
answer: Vitamin D
72. question: A red light is used in traffic signal to stop the vehicles because-
answer: It has the longest wavelength.
73. question: ECG is used for the diagnosis of-
answer: Heart.
74. question: Richter scale is used for measuring-
answer: Intensity of earthquake.
75. question: Who discovered that plants have life?
answer: J. C. Bose.
