Dear Students These are 100 most important multiple choice questions (MCQs) from these papers, with:
-
All 4 options listed
Correct answer selected
-
Full explanation for the correct answer
-
Why other 3 options are incorrect
Easy to Understand Guide
🎓 Introduction:
Are you preparing for Applied Sciences-I (Physics & Chemistry) under FBISE or Punjab Medical Faculty (PMF)? Whether you’re a student of Dispenser, MLT, or OTT, this is your one-stop guide to success! 📚
In this post, you’ll find the 100 most important MCQs fully solved, each with:
✅ All 4 options
✅ Correct answer
✅ Full explanation (in English + Roman Urdu)
✅ Reason why other options are wrong
📘 1st Portion Most IMP Applied Sciences
MCQs (Q1–Q50) with Explanations
✅ PART 1 of 100 Important MCQs with Explanations
1. What is called “to every action, there is an equal and opposite reaction”?
A. Newton first law of motion
B. Newton second law of motion
✅ C. Newton third law of motion
D. None of these
✔️ Correct Answer: C. Newton third law of motion
Explanation: Newton's third law states: "For every action, there is an equal and opposite reaction." This law explains how forces come in pairs. For example, if you push against a wall, the wall pushes back with equal force.
❌ Incorrect Options:
-
A (First Law): Deals with inertia, not action-reaction.
B (Second Law): F = ma, relates force and acceleration.
-
D: Incorrect because C is the right answer.
2. What is called energy due to motion of the body?
A. Nuclear energy
B. Mechanical energy
✅ C. Kinetic energy
D. Potential energy
✔️ Correct Answer: C. Kinetic energy
Explanation: Kinetic energy is the energy a body possesses due to motion, calculated by the formula:
KE = ½ mv²
❌ Incorrect Options:
-
A: Nuclear energy is due to atomic reactions.
B: Mechanical energy = kinetic + potential, not just motion.
-
D: Potential energy is due to position, not motion.
3. Which of the following is the cause of falling on the earth for everybody?
A. Velocity
B. Acceleration
C. Speed
✅ D. Gravity
✔️ Correct Answer: D. Gravity
Explanation: Gravity is a universal force of attraction between all masses. It pulls everything toward Earth’s center, which causes objects to fall.
❌ Incorrect Options:
-
A: Velocity is speed with direction.
B: Acceleration is change in velocity, not the cause.
-
C: Speed is scalar, not a force.
4. Which of the following is called Boyle’s Law?
✅ A. Pressure and volume are inversely proportional
B. Pressure and volume are directly proportional
C. Pressure and temperature are inversely proportional
D. Pressure and temperature are directly proportional
✔️ Correct Answer: A.
Explanation: Boyle’s Law states:
At constant temperature, pressure and volume of a gas are inversely proportional.
Mathematically: P ∝ 1/V
❌ Incorrect Options:
-
B: Opposite of Boyle’s Law
C & D: Relate to Charles’s or Gay-Lussac’s law
5. Which of the following is the unit of heat energy in SI system?
A. Calorie
B. Degree centigrade
✅ C. Joule
D. None of these
✔️ Correct Answer: C. Joule
Explanation: The SI unit of energy, including heat energy, is Joule (J).
1 Calorie = 4.18 Joules (used in food energy but not SI)
❌ Incorrect Options:
-
A: Calorie is non-SI unit
B: Centigrade is a unit of temperature
-
D: Incorrect because C is correct
6. Which of the following does not allow light to pass through it?
✅ A. Opaque
B. Transparent
C. Translucent
D. All of these
✔️ Correct Answer: A. Opaque
Explanation: Opaque objects block all light, allowing none to pass through. Example: Wood, wall, stone.
❌ Incorrect Options:
-
B: Transparent materials (glass) allow all light
C: Translucent (frosted glass) allow partial light
-
D: Not true because B and C do allow light
7. Which of the following is the cause of electric fire?
A. Bare conductors
B. Use of two pin sockets
✅ C. Short circuit
D. Open circuit
✔️ Correct Answer: C. Short circuit
Explanation: A short circuit causes large current flow, heating wires and causing fires.
❌ Incorrect Options:
-
A: Risky, but not direct fire cause
B: May lack grounding but doesn’t cause fire alone
-
D: Open circuit means no flow, no fire
8. Which of the following make nucleus of atom positive?
A. Electron
✅ B. Proton
C. Neutron
D. All of these
✔️ Correct Answer: B. Proton
Explanation: Proton has a positive charge and is located in the nucleus. Neutrons have no charge. Electrons are outside the nucleus.
❌ Incorrect Options:
-
A: Electrons are negative
C: Neutrons are neutral
-
D: Only protons are positive
9. Which of the following may be called a Universal solvent?
A. Sulphuric acid
B. Benzene
✅ C. Water
D. Sodium chloride
✔️ Correct Answer: C. Water
Explanation: Water dissolves more substances than any other liquid. That’s why it’s called the “universal solvent.”
❌ Incorrect Options:
-
A: Strong acid but not universal solvent
B: Organic solvent only
-
D: A salt, not a solvent
10. Which one of the following produces a bitter taste when dissolves in water?
A. Acids
✅ B. Bases
C. Proteins
D. Carbohydrates
✔️ Correct Answer: B. Bases
Explanation: Bases (like baking soda or soap) have a bitter taste and slippery feel. Acids are sour.
❌ Incorrect Options:
-
A: Acids are sour, not bitter
C: Proteins are tasteless or umami
-
D: Carbs are sweet
🔥 Most Important Applied Sciences MCQs | HSSC-I |
Batch 2 (Q11 to Q30)
For Dispenser, MLT, OTT – FBISE & PMF 2025 Exams
Solved with Explanations (English + Roman Urdu)
11. Which of the following has no charge?
A. Proton
B. Electron
✅ C. Neutron
D. Nucleus
✔️ Correct Answer: C. Neutron
Explanation (English): Neutron is a neutral subatomic particle found in the nucleus. It has no electric charge, unlike proton (+) or electron (−).
Roman Urdu: Neutron aik aisa zarra hai jo nucleus mein hota hai aur iska koi charge nahi hota. Proton positive aur electron negative hota hai.
❌ Incorrect Options:
-
A. Proton: Positive charge
B. Electron: Negative charge
-
D. Nucleus: Contains both charged & neutral particles
12. Which one is a physical change?
✅ A. Melting of ice
B. Rusting of iron
C. Digestion of food
D. Burning of coal
✔️ Correct Answer: A. Melting of ice
Explanation: It’s a physical change because water turns to ice and back without changing its chemical formula (H₂O).
Roman Urdu: Barf ka pighalna ek physical tabdeeli hai kyunki sirf halat (state) badalti hai, madah nahi.
❌ Incorrect Options:
-
B/C/D: These are chemical changes involving new substances.
13. Which of the following is found in both plant and animal cells?
✅ A. Mitochondria
B. Cell wall
C. Chloroplast
D. Vacuole
✔️ Correct Answer: A. Mitochondria
Explanation: Mitochondria are the powerhouse of the cell and found in both plant and animal cells.
Roman Urdu: Mitochondria dono, podon aur janwaron ke cells mein hota hai aur energy banata hai.
❌ Incorrect Options:
-
B: Cell wall only in plant cells
C: Chloroplast only in plant cells
-
D: Vacuole large in plants, small/rare in animals
14. Which of the following is a protein?
A. Glucose
B. Starch
C. Cellulose
✅ D. Hemoglobin
✔️ Correct Answer: D. Hemoglobin
Explanation: Hemoglobin is a protein in red blood cells that carries oxygen.
Roman Urdu: Hemoglobin aik protein hai jo laal khoon ke cells mein oxygen le jaata hai.
❌ Incorrect Options:
-
A/B/C: These are carbohydrates, not proteins.
15. What is the function of white blood cells?
A. Carry oxygen
✅ B. Fight infection
C. Help clotting
D. Produce insulin
✔️ Correct Answer: B. Fight infection
Explanation: White blood cells protect the body from bacteria, viruses, and other pathogens.
Roman Urdu: White blood cells jism ko infections se bachate hain.
❌ Incorrect Options:
-
A: Red blood cells
C: Platelets
-
D: Pancreas function
16. Which one is an example of potential energy?
A. Moving car
B. Falling stone
✅ C. Stretched spring
D. Running water
✔️ Correct Answer: C. Stretched spring
Explanation: Stored energy in a stretched spring is potential energy.
Roman Urdu: Khi’ncha gaya spring energy store karta hai, isse potential energy kehte hain.
❌ Incorrect Options:
-
A/D: Kinetic energy
B: Converting to kinetic
17. Which gas is used in respiration?
✅ A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen
✔️ Correct Answer: A. Oxygen
Explanation: Cells need oxygen to break down glucose and release energy.
Roman Urdu: Saans mein oxygen istemal hoti hai taake energy mil sake.
❌ Incorrect Options:
-
B: Produced, not used
C/D: Not involved in respiration
18. What is the unit of frequency?
✅ A. Hertz
B. Newton
C. Joule
D. Pascal
✔️ Correct Answer: A. Hertz
Explanation: Frequency is the number of vibrations per second and its unit is Hertz (Hz).
Roman Urdu: Frequency ki unit Hertz hoti hai – vibrations per second.
19. What is measured by thermometer?
✅ A. Temperature
B. Pressure
C. Heat
D. Force
✔️ Correct Answer: A. Temperature
Explanation: A thermometer measures the degree of hotness or coldness.
Roman Urdu: Thermometer se temperature mapte hain.
20. What is the smallest particle of an element?
✅ A. Atom
B. Molecule
C. Ion
D. Compound
✔️ Correct Answer: A. Atom
Explanation: Atom is the basic unit of matter for an element.
Roman Urdu: Har ansar ka sab se chhota hissa atom hota hai.
21. What is a saturated solution?
✅ A. No more solute dissolves
B. Excess solute dissolves
C. All water evaporated
D. Crystal formed
✔️ Correct Answer: A.
Explanation: A saturated solution holds the maximum solute at a given temperature.
22. Which of these is a renewable resource?
✅ A. Solar energy
B. Coal
C. Oil
D. Natural gas
✔️ Correct Answer: A. Solar energy
Explanation: Sunlight is available constantly and won’t run out.
23. Which vitamin helps in blood clotting?
A. Vitamin A
B. Vitamin B
✅ C. Vitamin K
D. Vitamin D
✔️ Correct Answer: C. Vitamin K
24. Which substance turns blue litmus red?
✅ A. Acid
B. Base
C. Salt
D. Water
25. What is the unit of electric current?
✅ A. Ampere
B. Volt
C. Ohm
D. Watt
26. What is an insulator?
✅ A. Material that does not allow current
B. Material that conducts electricity
C. Iron rod
D. Silver
27. What is respiration?
✅ A. Release of energy from food
B. Breaking of bones
C. Mixing of food
D. Blood clotting
28. What is the pH of neutral solution?
✅ A. 7
B. 1
C. 14
D. 0
29. What is the normal human body temperature in Celsius?
✅ A. 37°C
B. 98.6°C
C. 35°C
D. 25°C
30. What is distilled water?
✅ A. Pure water
B. Salt water
C. Acidic water
D. Tap water
🔥 Applied Sciences HSSC-I | MCQs 31–50 Solved
with Explanation
✅ For Dispenser, MLT, OTT – FBISE & PMF Exams 2025
Full bilingual explanations | Urdu + English | Students Friendly Important And Conceptual
31. Which is the largest organ in the human body?
✅ A. Skin
B. Liver
C. Lungs
D. Heart
✔️ Correct Answer: A. Skin
Explanation (English): Skin is the largest organ by surface area and weight. It protects internal organs, regulates temperature, and prevents infection.
Roman Urdu: Jism ka sab se bara azaa skin hai jo hifazat karta hai aur body temperature ko control karta hai.
❌ Incorrect Options:
❌B: Largest internal organ
❌C/D: Not the largest
32. Which one is responsible for transmitting messages in the body?
A. RBC
✅ B. Neurons
C. WBC
D. Platelets
✔️ Correct Answer: B. Neurons
Explanation: Neurons are nerve cells that carry electrical impulses between the brain and body.
Roman Urdu: Neurons brain aur body ke darmiyan paighamat bhejte hain.
33. Which vitamin prevents rickets?
✅ A. Vitamin D
B. Vitamin A
C. Vitamin B
D. Vitamin K
✔️ Correct Answer: A. Vitamin D
Explanation: Vitamin D helps in calcium absorption, preventing rickets (soft bones).
Roman Urdu: Vitamin D haddi ko majboot banata hai aur rickets se bachata hai.
34. Which blood group is universal donor?
✅ A. O negative
B. A positive
C. B negative
D. AB positive
✔️ Correct Answer: A. O negative
Explanation: O− blood can be donated to all blood types as it has no antigens.
Roman Urdu: O negative kisi bhi blood group ko diya ja sakta hai.
35. Which part of the cell controls activities?
A. Mitochondria
B. Ribosome
✅ C. Nucleus
D. Cytoplasm
✔️ Correct Answer: C. Nucleus
Explanation: Nucleus is the control center of the cell containing DNA.
Roman Urdu: Cell ka nucleus uski tamam sargrmiyon ko control karta hai.
36. What is the chemical formula of water?
✅ A. H₂O
B. HO₂
C. H₂SO₄
D. CO₂
✔️ Correct Answer: A. H₂O
Explanation: Water is made of 2 hydrogen atoms and 1 oxygen atom.
37. What is the main gas in exhaled air?
A. Oxygen
✅ B. Carbon dioxide
C. Hydrogen
D. Helium
✔️ Correct Answer: B. Carbon dioxide
Explanation: We inhale oxygen and exhale carbon dioxide after respiration.
38. Which acid is found in the stomach?
✅ A. Hydrochloric acid
B. Sulfuric acid
C. Nitric acid
D. Acetic acid
✔️ Correct Answer: A. HCl
Explanation: HCl helps in food digestion and kills bacteria in the stomach.
39. The unit of work is:
✅ A. Joule
B. Newton
C. Pascal
D. Ohm
✔️ Correct Answer: A. Joule
Explanation: Work is force × distance; its unit is joule.
40. Which organ purifies blood?
✅ A. Kidney
B. Heart
C. Liver
D. Lungs
✔️ Correct Answer: A. Kidney
Explanation: Kidneys filter waste from blood and form urine.
41. Normal blood pressure in humans is:
✅ A. 120/80 mmHg
B. 140/100 mmHg
C. 80/120 mmHg
D. 100/60 mmHg
✔️ Correct Answer: A.
Explanation: Ideal BP is 120/80 mmHg for healthy adults.
42. Which blood cells help in clotting?
A. WBC
B. RBC
✅ C. Platelets
D. Plasma
43. What is pH scale used to measure?
✅ A. Acidity or basicity
B. Density
C. Temperature
D. Light
44. Which of the following is not a vector quantity?
A. Velocity
B. Acceleration
✅ C. Temperature
D. Force
45. The boiling point of water is:
A. 0°C
✅ B. 100°C
C. 90°C
D. 212°C
46. What is the normal pulse rate?
A. 60–70 bpm
✅ B. 72 bpm
C. 90 bpm
D. 110 bpm
47. What is the color of oxygen gas?
✅ A. Colorless
B. Blue
C. Yellow
D. White
48. What is the SI unit of force?
✅ A. Newton
B. Joule
C. Watt
D. Pascal
49. Which organ controls reflex action?
A. Brain
✅ B. Spinal cord
C. Heart
D. Kidneys
50. DNA is present in which part of cell?
✅ A. Nucleus
B. Cytoplasm
C. Ribosome
D. Cell wall
📘 2nd Portion Applied Sciences MCQs
(Q51–Q100) with Explanations
📘 Applied Sciences HSSC-I | Solved MCQs Batch 4
(Q51–Q70)
🔬 For FBISE & PMF (Dispenser, OTT, MLT) | 2025 Exams
Bilingual (Urdu + English) | SEO Optimized | Easy Explanations
51. Which gas is essential for respiration?
✅ A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Helium
✔️ Correct Answer: A. Oxygen
Explanation: Oxygen is required for cellular respiration to produce energy (ATP).
Roman Urdu: Sans lene aur energy hasil karne ke liye oxygen zaroori hoti hai.
52. Which part of the eye controls the amount of light entering it?
A. Retina
✅ B. Iris
C. Cornea
D. Lens
✔️ Correct Answer: B. Iris
Explanation: Iris adjusts the size of pupil, thus controlling the light entering the eye.
Roman Urdu: Iris aankh mein roshni ka dakhla control karta hai.
53. Which one is a renewable source of energy?
✅ A. Solar energy
B. Coal
C. Petroleum
D. Natural gas
✔️ Correct Answer: A. Solar energy
Explanation: Solar energy can be renewed continuously unlike fossil fuels.
54. The smallest unit of life is:
✅ A. Cell
B. Atom
C. Tissue
D. Organ
55. Blood is a:
✅ A. Connective tissue
B. Muscular tissue
C. Epithelial tissue
D. Nervous tissue
56. Which hormone controls sugar in the blood?
A. Adrenaline
B. Estrogen
✅ C. Insulin
D. Testosterone
✔️ Correct Answer: C. Insulin
Explanation: Insulin reduces blood sugar level by allowing glucose absorption.
57. What is the unit of frequency?
✅ A. Hertz (Hz)
B. Watt
C. Pascal
D. Ohm
58. The hardest substance in the body is:
A. Bone
✅ B. Enamel
C. Cartilage
D. Tendon
✔️ Correct Answer: B. Enamel
Explanation: Enamel covers the outer surface of teeth and is hardest in the body.
59. The study of microorganisms is called:
A. Pathology
✅ B. Microbiology
C. Physiology
D. Hematology
60. Which of the following is a noble gas?
✅ A. Helium
B. Oxygen
C. Nitrogen
D. Hydrogen
61. Energy stored in food is called:
A. Electrical energy
B. Light energy
✅ C. Chemical energy
D. Sound energy
62. Blood group AB is called:
A. Universal donor
✅ B. Universal recipient
C. Rare type
D. Negative blood group
63. Hemoglobin is present in:
A. Plasma
✅ B. Red Blood Cells (RBCs)
C. White Blood Cells
D. Platelets
64. The safest way to disinfect water is:
✅ A. Boiling
B. Filtering
C. Freezing
D. Mixing salt
65. The SI unit of temperature is:
✅ A. Kelvin
B. Celsius
C. Fahrenheit
D. Degree
66. Plant prepare food through:
A. Respiration
✅ B. Photosynthesis
C. Germination
D. Fermentation
67. Water is:
A. Acidic
B. Basic
✅ C. Neutral
D. Salty
68. The organ that pumps blood is:
A. Lungs
B. Liver
✅ C. Heart
D. Kidney
69. Which nutrient helps in body growth?
A. Fats
✅ B. Proteins
C. Carbohydrates
D. Vitamins
70. Light travels fastest in:
✅ A. Vacuum
B. Water
C. Glass
D. Air
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📘 Applied Sciences HSSC-I | Solved MCQs Batch 5
(Q71–Q90)
🔬 For FBISE & PMF (Dispenser, OTT, MLT) | 2025 Exams
Bilingual (Urdu + English) | Fully Explained | Very Important
71. Which one is not a renewable source of energy?
✅ A. Coal
B. Solar
C. Wind
D. Hydroelectric
✔️ Correct Answer: A. Coal
Explanation: Coal is a fossil fuel and once used, it cannot be replenished.
Roman Urdu: Coal ek ghair-tajdeedi fuel hai. Use dobara hasil nahi kiya ja sakta.
72. Which vitamin helps in blood clotting?
A. Vitamin A
B. Vitamin C
C. Vitamin D
✅ D. Vitamin K
✔️ Correct Answer: D. Vitamin K
Explanation: Vitamin K is essential for synthesizing clotting factors in the liver.
Roman Urdu: Vitamin K khoon jamanay mein madad karta hai.
73. Which blood cells fight against diseases?
A. RBCs
✅ B. WBCs
C. Platelets
D. Plasma
✔️ Correct Answer: B. WBCs (White Blood Cells)
Explanation: White blood cells are part of the immune system and fight infections.
74. The SI unit of force is:
A. Pascal
✅ B. Newton
C. Joule
D. Watt
✔️ Correct Answer: B. Newton
Explanation: Force is measured in Newtons (N), derived from F = ma.
75. Which organ filters blood in the body?
A. Heart
✅ B. Kidney
C. Liver
D. Lungs
✔️ Correct Answer: B. Kidney
Explanation: Kidneys remove wastes and excess fluids from blood.
76. Which is the largest bone in the human body?
A. Skull
B. Humerus
✅ C. Femur
D. Tibia
✔️ Correct Answer: C. Femur
Explanation: The thigh bone (femur) is the strongest and longest bone.
77. Which gas is produced during respiration?
A. Oxygen
✅ B. Carbon dioxide
C. Nitrogen
D. Hydrogen
✔️ Correct Answer: B. CO₂
Explanation: During cellular respiration, carbon dioxide is released as a waste.
78. Deficiency of iodine causes:
A. Anemia
✅ B. Goiter
C. Rickets
D. Night blindness
✔️ Correct Answer: B. Goiter
Explanation: Iodine deficiency causes enlargement of the thyroid gland.
79. Which of these is a component of blood?
A. Bile
B. Lymph
✅ C. Platelets
D. Saliva
✔️ Correct Answer: C. Platelets
Explanation: Platelets help in blood clotting.
80. Which is a conductor of electricity?
A. Wood
B. Plastic
✅ C. Copper
D. Rubber
✔️ Correct Answer: C. Copper
Explanation: Copper is a good conductor and used in wires.
81. Normal human body temperature in Celsius is:
A. 37°F
✅ B. 37°C
C. 98.6°C
D. 100°C
✔️ Correct Answer: B. 37°C
Explanation: 98.6°F = 37°C, which is the normal body temp.
82. Blood cells are made in the:
A. Liver
✅ B. Bone marrow
C. Heart
D. Brain
✔️ Correct Answer: B. Bone Marrow
Explanation: Bone marrow produces RBCs, WBCs, and platelets.
83. Which one is not a sense organ?
A. Eye
B. Ear
✅ C. Kidney
D. Nose
✔️ Correct Answer: C. Kidney
Explanation: Kidneys are excretory organs, not sensory.
84. What is the main function of RBCs?
A. Immunity
✅ B. Oxygen transport
C. Clotting
D. Digestion
85. A thermometer measures:
A. Air pressure
✅ B. Temperature
C. Humidity
D. Speed
86. Boiling point of water is:
A. 80°C
B. 50°C
✅ C. 100°C
D. 150°C
87. Which of these conducts electricity in solution?
A. Sugar
B. Alcohol
✅ C. Salt
D. Oil
88. Which is the energy currency of the cell?
A. DNA
✅ B. ATP
C. RNA
D. Protein
89. Which metal is liquid at room temperature?
A. Lead
B. Zinc
C. Aluminium
✅ D. Mercury
90. Which gas is filled in soft drink bottles?
A. Oxygen
B. Nitrogen
✅ C. Carbon dioxide
D. Hydrogen
📘 Applied Sciences HSSC-I | Solved MCQs Batch 6
(Q91–Q100)
🧪 Final Set – For FBISE & PMF Dispenser, OTT, MLT | 2025 Exams
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91. The basic unit of heredity is:
A. Chromosome
B. Nucleus
✅ C. Gene
D. Cell
✔️ Correct Answer: C. Gene
Explanation: A gene is a segment of DNA responsible for inherited traits.
Roman Urdu: Gene virasat ka bunyadi hissa hai jo DNA mein hota hai.
92. Which part of the body produces insulin?
A. Liver
✅ B. Pancreas
C. Kidney
D. Stomach
✔️ Correct Answer: B. Pancreas
Explanation: The pancreas secretes insulin to control blood sugar levels.
Roman Urdu: Pancreas insulin hormone banata hai jo sugar level ko control karta hai.
93. Acid turns blue litmus paper into:
✅ A. Red
B. Yellow
C. Green
D. No change
94. The function of hemoglobin is to:
A. Kill germs
✅ B. Transport oxygen
C. Digest protein
D. Carry fat
95. Which process converts food into energy?
A. Digestion
B. Inhalation
✅ C. Respiration
D. Circulation
✔️ Correct Answer: C. Respiration
Explanation: Respiration breaks down glucose to release energy (ATP).
96. Which instrument is used to measure blood pressure?
A. Thermometer
✅ B. Sphygmomanometer
C. Stethoscope
D. Barometer
97. Which element is needed for healthy teeth and bones?
A. Iron
✅ B. Calcium
C. Iodine
D. Sodium
98. Which type of blood carries oxygen?
A. Venous blood
✅ B. Arterial blood
C. Capillary blood
D. Mixed blood
✔️ Correct Answer: B. Arterial blood
Explanation: Oxygenated blood is carried by arteries from lungs to body.
99. Which organ helps in digestion and detoxification?
✅ A. Liver
B. Heart
C. Brain
D. Lungs
100. Which gas is responsible for global warming?
A. Oxygen
✅ B. Carbon dioxide
C. Nitrogen
D. Helium
✔️ Correct Answer: B. CO₂
Explanation: CO₂ traps heat in the atmosphere, causing climate change.
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You now have a Bilingual (Urdu + English) | Fully Explained | Very Important Article containing:
💯🔹 Most important Applied Sciences MCQs
💯🔹 High-yield explanations for Dispenser, OTT, MLT
💯🔹 Full FBISE & PMF syllabus coverage
 | Bilingual with Explanations){kind=link}
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