📘 MOST REPEATED IMPORTANT MCQs - PART 2
Everyday Science | IBA STS BPS 5 to 15 Test Preparation
📌 Exam Pattern:
• MCQs English me • Detailed explanation Roman Urdu me • Points me explanation (kia, kyun, kahan se milta etc.) • IBA STS BPS 5–15 level
2
PART 2 (1–50) | Everyday Science MCQs
🧬 Biology & Human Body
🧬 Biology & Human Body
1. Which vitamin is also called Ascorbic Acid?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Vitamin C ko Ascorbic Acid kehte hain
• Is ki kami se Scurvy hoti hai
• Ye immunity strong karta hai
• Sources: orange, lemon, amla, guava
• Is ki kami se Scurvy hoti hai
• Ye immunity strong karta hai
• Sources: orange, lemon, amla, guava
🧬 Biology & Human Body
2. Deficiency of Vitamin D causes:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Vitamin D bones ke liye zaroori hai
• Kami se Rickets hota hai
• Bones soft aur weak ho jati hain
• Sources: sunlight, milk, egg yolk
• Kami se Rickets hota hai
• Bones soft aur weak ho jati hain
• Sources: sunlight, milk, egg yolk
🧬 Biology & Human Body
3. Which blood cells help in fighting diseases?
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• White blood cells body ka defense system hain
• Infection aur germs se fight karti hain
• Infection aur germs se fight karti hain
🧬 Biology & Human Body
4. Which blood cells help in clotting?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Platelets bleeding rokne me madad karti hain
• Injury par blood clot banati hain
• Injury par blood clot banati hain
🧬 Biology & Human Body
5. Normal body temperature of human is:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Normal temperature 37°C hota hai
• Is se zyada ho to fever kehlata hai
• Is se zyada ho to fever kehlata hai
🫀 Organs & Systems
🫀 Organs & Systems
6. Heart is protected by:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Ribs heart aur lungs ko protect karti hain
• Isay rib cage kehte hain
• Isay rib cage kehte hain
🫀 Organs & Systems
7. Which organ purifies blood?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Kidney blood se waste nikalti hai
• Urine banane me madad karti hai
• Urine banane me madad karti hai
🫀 Organs & Systems
8. Largest organ of human body is:
✅ Correct Answer: D
📝 Explanation (Roman Urdu):
• Skin body ka sab se bara organ hai
• Ye protection provide karti hai
• Ye protection provide karti hai
🫀 Organs & Systems
9. Which organ produces bile?
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Liver bile produce karta hai
• Bile fat digestion me help karta hai
• Gall bladder bile store karta hai
• Bile fat digestion me help karta hai
• Gall bladder bile store karta hai
🫀 Organs & Systems
10. Food pipe is also called:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Esophagus food ko mouth se stomach tak le jata hai
🌱 Plants & Environment
🌱 Plants & Environment
11. Process by which plants make food:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Photosynthesis me plants food banate hain
• Sunlight + CO₂ + water use hota hai
• Oxygen release hoti hai
• Sunlight + CO₂ + water use hota hai
• Oxygen release hoti hai
🌱 Plants & Environment
12. Which gas is absorbed by plants?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Plants CO₂ absorb karte hain
• Oxygen release karte hain
• Oxygen release karte hain
🌱 Plants & Environment
13. Loss of water from leaves is called:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Leaves se pani ka nikalna transpiration kehlata hai
• Ye cooling effect deta hai
• Ye cooling effect deta hai
🌱 Plants & Environment
14. Which part of plant absorbs water?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Roots soil se water aur minerals absorb karti hain
🌱 Plants & Environment
15. Green pigment in plants is called:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Chlorophyll sunlight absorb karta hai
• Isi se photosynthesis hoti hai
• Isi se photosynthesis hoti hai
⚡ Physics
⚡ Physics
16. Unit of force is:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Force ki unit Newton (N) hoti hai
⚡ Physics
17. Speed of light is:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Light sab se tez hoti hai
• Speed = 3×10⁸ m/s
• Speed = 3×10⁸ m/s
⚡ Physics
18. Energy possessed by moving body is:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Moving object ke paas kinetic energy hoti hai
• Example: running car
• Example: running car
⚡ Physics
19. Unit of power is:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Power ki unit Watt hoti hai
⚡ Physics
20. Which mirror is used in vehicles?
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Convex mirror zyada area show karta hai
• Is liye rear-view mirrors me use hota hai
• Is liye rear-view mirrors me use hota hai
⚡ Physics (Continue)
⚡ Physics
21. Instrument used to measure electric current is called:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Electric current naapne ke liye Ammeter use hota hai
• Current ka unit Ampere hota hai
• Current ka unit Ampere hota hai
⚡ Physics
22. Instrument used to measure voltage is:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Voltage measure karne ke liye Voltmeter use hota hai
• Voltage ka unit Volt hota hai
• Voltage ka unit Volt hota hai
⚡ Physics
23. The SI unit of heat is:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Heat energy ki SI unit Joule hai
• Calorie purani unit hai
• Calorie purani unit hai
⚡ Physics
24. Which type of energy is stored in food?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Food me chemical energy hoti hai
• Body digestion ke baad is energy ko use karti hai
• Body digestion ke baad is energy ko use karti hai
⚡ Physics
25. Sound cannot travel through:
✅ Correct Answer: D
📝 Explanation (Roman Urdu):
• Sound ko medium chahiye hota hai
• Vacuum me sound travel nahi karti
• Vacuum me sound travel nahi karti
🧪 Chemistry
🧪 Chemistry
26. Water is an example of:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Water = H₂O
• Hydrogen + Oxygen chemically combine → compound
• Hydrogen + Oxygen chemically combine → compound
🧪 Chemistry
27. Which gas is essential for respiration?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Oxygen breathing ke liye zaroori hai
• Cells energy banati hain oxygen se
• Cells energy banati hain oxygen se
🧪 Chemistry
28. Change of solid into liquid is called:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Ice → water = melting
• Heat gain karne se hota hai
• Heat gain karne se hota hai
🧪 Chemistry
29. The pH value of pure water is:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• pH 7 = neutral
• Na acidic, na basic
• Na acidic, na basic
🧪 Chemistry
30. Which of the following is an acid?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Vinegar me acetic acid hota hai
• Taste sour hota hai
• Taste sour hota hai
🌍 Earth & Environment
🌍 Earth & Environment
31. Ozone layer protects earth from:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• UV rays skin cancer ka cause ban sakti hain
• Ozone layer earth ka shield hai
• Ozone layer earth ka shield hai
🌍 Earth & Environment
32. Main gas responsible for global warming is:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• CO₂ heat trap karti hai
• Fossil fuels jalane se zyada CO₂ banti hai
• Fossil fuels jalane se zyada CO₂ banti hai
🌍 Earth & Environment
33. Which source produces renewable energy?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Solar energy kabhi khatam nahi hoti
• Pollution bhi kam hota hai
• Pollution bhi kam hota hai
🌍 Earth & Environment
34. Rainwater harvesting means:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Rainwater ko store karna future use ke liye
• Water shortage kam hoti hai
• Water shortage kam hoti hai
🌍 Earth & Environment
35. Deforestation causes:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Trees na hon to mitti beh jati hai
• Isay soil erosion kehte hain
• Isay soil erosion kehte hain
🧬 Biology (Final)
🧬 Biology (Final)
36. Which organ controls all activities of body?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Brain body ka control center hai
• Thinking, movement sab control karta hai
• Thinking, movement sab control karta hai
🧬 Biology (Final)
37. The basic unit of life is:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Har living cheez cells se mil kar banti hai
• Cell sab se choti unit hai
• Cell sab se choti unit hai
🧬 Biology (Final)
38. Which nutrient gives instant energy?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Carbohydrates quick energy dete hain
• Example: rice, bread, sugar
• Example: rice, bread, sugar
🧬 Biology (Final)
39. Deficiency of iron causes:
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Iron se hemoglobin banta hai
• Kami se Anemia hota hai
• Symptoms: weakness, dizziness
• Kami se Anemia hota hai
• Symptoms: weakness, dizziness
🧬 Biology (Final)
40. Which vitamin helps in blood clotting?
✅ Correct Answer: D
📝 Explanation (Roman Urdu):
• Vitamin K bleeding rokne me madad karta hai
• Leafy vegetables iska source hain
• Leafy vegetables iska source hain
🔬 Mixed Science
🔬 Mixed Science
41. Which sense organ is responsible for hearing?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Ear sound ko sunne ka kaam karta hai
🔬 Mixed Science
42. Which gas is filled in electric bulbs?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Electric bulbs me Argon gas bhari jati hai
• Ye filament ko jaldi jalne se bachati hai
• Ye filament ko jaldi jalne se bachati hai
🔬 Mixed Science
43. Which planet is known as Red Planet?
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Mars ko Red Planet kehte hain
• Is ka rang iron oxide ki wajah se red hai
• Is ka rang iron oxide ki wajah se red hai
🔬 Mixed Science
44. Boiling point of water is:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Normal atmospheric pressure par water 100°C par boil hota hai
🔬 Mixed Science
45. The study of plants is called:
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Plants ka study Botany kehlata hai
• Animals ka study Zoology kehlata hai
• Animals ka study Zoology kehlata hai
🔬 Mixed Science
46. Which vitamin prevents night blindness?
✅ Correct Answer: A
📝 Explanation (Roman Urdu):
• Vitamin A aankhon ke liye zaroori hai
• Kami se raat me dekhne me mushkil hoti hai
• Kami se raat me dekhne me mushkil hoti hai
🔬 Mixed Science
47. Which blood group is universal donor?
✅ Correct Answer: D
📝 Explanation (Roman Urdu):
• O negative blood group universal donor hai
• Ye sab ko diya ja sakta hai
• Ye sab ko diya ja sakta hai
🔬 Mixed Science
48. Which metal is liquid at room temperature?
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Mercury liquid metal hai
• Isay thermometer me use karte hain
• Isay thermometer me use karte hain
🔬 Mixed Science
49. Which part of eye controls amount of light?
✅ Correct Answer: B
📝 Explanation (Roman Urdu):
• Iris eye me light ki amount control karta hai
• Pupil ka size badhta ghata hai
• Pupil ka size badhta ghata hai
🔬 Mixed Science
50. Which organ helps in breathing?
✅ Correct Answer: C
📝 Explanation (Roman Urdu):
• Lungs breathing ka kaam karte hain
• Oxygen andar lete hain, CO₂ bahar nikalte hain
• Oxygen andar lete hain, CO₂ bahar nikalte hain