Everyday Science MCQs collected from past papers of 2023 – 2024

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1. : K2 stands for?



2. : The chemical formula of water is?



 

3. : The process by which plants make their food is called?



 

4. : The largest planet in our solar system is?



 

5. : Which gas is essential for breathing?



 

6. : The human body has how many bones?



 

7. : The longest river in the world is?



 

8. : The heart of a human is made up of?



 

9. : Which planet is known as the “Red Planet”?



 

10. : The chemical symbol for Gold is?



 

11. : The human brain weighs approximately?



 

12. : Which vitamin is known as the “Sunshine Vitamin”?



 

13. : The speed of light is approximately?



 

14. : What is the powerhouse of the cell?



 

15. : The Earth’s atmosphere is composed mostly of?



 

16. : The element that is liquid at room temperature is?



 

17. : The process of water changing from a liquid to a gas is called?



 

18. : The largest organ in the human body is?



 

19. : The first element on the periodic table is?



 

20. : Which of the following is the hardest natural substance on Earth?



 

21. : The smallest bone in the human body is found in the?



 

22. : Which of the following is an example of a renewable resource?



 

23. : Which gas is responsible for the greenhouse effect?



 

24. : The process by which plants lose water through tiny pores in their leaves is called?



 

25. : The unit of electric current is?



 

26. : Which part of the human body has the highest concentration of oxygen?



 

27. : Which vitamin is essential for blood clotting?



 

28. : The chemical formula for methane is?



 

29. : Which of the following planets has the most moons?



 

30. : The atomic number of carbon is?



 

31. : The first man to walk on the moon was?



 

32. : The most abundant gas in Earth’s atmosphere is?



 

33. : Which organ is responsible for pumping blood in the human body?



 

34. : Which of the following is a non-metal?



 

35. : The hardest substance found in nature is?



 

36. : The smallest unit of life is?



 

37. : The famous scientist who developed the theory of relativity is?



 

38. : The primary source of energy for the Earth is?



 

39. : The first artificial satellite launched into space was?



 

40. : The study of fungi is called?



 

41. : The unit of frequency is?



 

42. : Which of the following elements is a noble gas?



 

43. : The human skeleton is made up of how many bones at birth?



 

44. : The first woman in space was?



 

45. : The largest land animal is?



 

46. : The process of converting a liquid to a gas below its boiling point is called?



 

47. : The first synthetic plastic was?



 

48. : The gas responsible for the blue color of the Earth’s sky is?



 

49. : Which of the following is a primary color of light?



 

50. : The chemical symbol for Sodium is?



 

51. : The largest ocean on Earth is?



 

52. : The process by which green plants make their food is called?



 

53. : The instrument used to measure atmospheric pressure is called?



 

54. : Which vitamin helps in the absorption of calcium?



 

55. : The chemical formula of ammonia is?



 

56. : Which of the following is a non-renewable resource?



 

57. : The unit of force is?



 

58. : The study of insects is called?



 

59. : The coldest place on Earth is?



 

60. : The first law of motion was proposed by?



 

61. : The primary function of white blood cells is to?



 

62. : The first human-made object to reach outer space was?



 

63. : The chemical symbol for the element oxygen is?



 

64. : The total number of chromosomes in a human cell is?



 

65. : Which planet has the most similar atmosphere to Earth’s?



 

66. : The smallest planet in our solar system is?



 

67. : Which of the following is a noble gas?



 

68. : The total number of bones in an adult human body is?



 

69. : The layer of the atmosphere that protects us from harmful ultraviolet radiation is?



 

70. : The main source of energy for the Earth is?



 

71. : Which of the following is an example of a mammal?



 

72. : The color of the sky is blue due to the scattering of light by?



 

73. : The Earth’s core is primarily composed of?



 

74. : The largest internal organ in the human body is?



 

75. : The smallest planet in the solar system is?



 

76. : Which of the following is a conductor of electricity?



 

77. : The first law of thermodynamics is also known as the law of?



 

78. : Which element is the most abundant in the Earth’s crust?



 

79. : The process by which plants release water vapor is called?



 

80. : The human body’s largest artery is?



 

81. : The process by which water changes from a liquid to a solid is called?



 

82. : The power of a lens is measured in?



 

83. : The ozone layer is found in which part of the atmosphere?



 

84. : Which of the following is NOT a greenhouse gas?



 

85. : Which of the following is a common use of radioactive isotopes?



 

86. : The Earth’s magnetic field is generated by?



 

87. : The organ responsible for producing insulin is?



 

88. : Which gas is used in filling balloons?



 

89. : What is the chemical symbol for silver?



 

90. : The distance between the Earth and the Sun is called?



 

91. : The process of nuclear fusion occurs primarily in?



 

92. : The most abundant element in the universe is?



 

93. : Which of the following is a type of electromagnetic wave?



 

94. : The pH level of pure water is?



 

95. : What is the hardest naturally occurring substance on Earth?



 

96. : The branch of biology that deals with the study of plants is called?



 

97. : The process of converting a gas into a liquid is called?



 

98. : The chemical symbol for potassium is?



 

99. : The unit of electric power is?



 

100. : The main function of the roots in plants is to?



 

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