✅ SOOMRO 😇Academy Science MCQs (1–104) With Options and ✔ Correct Answers 🧠 Human Body, Biology, Chemistry, Physics, Space 1. The pumping station of human body is: A) Lungs B) Liver C) Brain D) Heart ✔ 2. The word "Science" means: A) Thinking B) Research C) Discover D) To know ✔ 3. Blood is purified by: A) Lungs B) Heart C) Liver D) Kidneys ✔ 4. Largest gland in human body: A) Pancreas B) Liver ✔ C) Thyroid D) Brain 5. Term "Protein" was given by: A) Newton B) Galileo C) Berzelius ✔ D) Hook 6. Permanent teeth in humans: A) 20 B) 28 C) 30 D) 32 ✔ 7. pH of human blood is: A) 6.2 B) 7.4 ✔ C) 8 D) 9.1 8. Normal body temperature: A) 96°F B) 97.8°F C) 98.6°F ✔ D) 99.6°F 9. Yeast is an example of: A) Bacteria B) Fungi ✔ C) Virus D) Algae 10. Birds and animals are: A) Cold-blooded B) Warm-blooded ✔ C) Invertebrates D) Amphibians 11. SI unit of electric current is: A) Volt B) Ampere ✔ C) Watt D) Ohm 12. Formula of Laughing Gas is: A) NH₃ B) CO₂ C) N₂O ✔ D) CH₄ 13. Carrot is rich in: A) Vitamin B B) Vitamin A ✔ C) Vitamin D D) Vitamin E 14. Only flying mammal is: A) Eagle B) Sparrow C) Owl D) Bat ✔ 15. HCL in stomach: A) Kills germs & softens food ✔ B) Breaks fat C) Produces blood D) Kills viruses 16. Bones in human face: A) 12 B) 13 C) 14 ✔ D) 16 17. Total muscles in human body: A) 436 B) 535 C) 600 D) 639 ✔ 18. Brain is made of: A) Bones B) Villi C) Neurons ✔ D) Nerves 19. Blood is red due to: A) Iron B) Hemoglobin ✔ C) Plasma D) Glucose 20. Flying mammal is: A) Parrot B) Owl C) Pigeon D) Bat ✔ 21. Number of planets in solar system: A) 7 B) 9 C) 8 ✔ D) 10 22. Radio was invented by: A) Edison B) Bell C) Newton D) Marconi ✔ 23. Microscope invented by: A) Galileo ✔ B) Newton C) Edison D) Darwin 24. How many senses in humans: A) 4 B) 5 ✔ C) 6 D) 7 25. Kidney contains units called: A) Alveoli B) Nephrons ✔ C) Neurons D) Arteries 26. Fastest planet is: A) Venus B) Earth C) Mars D) Mercury ✔ 27. Structure unit of kidney: A) Nephrons ✔ B) Bronchi C) Villi D) Axon 28. Electric bulb invented by: A) Bell B) Thomas Edison ✔ C) Maxwell D) Tesla 29. Malaria word is from: A) Greek B) Persian C) Arabic D) Latin ✔ 30. Penicillin discovered by: A) Newton B) Galileo C) Fleming ✔ D) Rutherford 31. Gas used in electric bulb: A) Oxygen B) Argon ✔ C) Hydrogen D) Nitrogen 32. Blood is formed in: A) Liver B) Brain C) Bone marrow ✔ D) Lungs 33. Nucleus controls: A) Blood flow B) Cell activities ✔ C) Breathing D) Body temperature 34. Night blindness cured by: A) Vitamin B B) Vitamin C C) Vitamin A ✔ D) Vitamin D 35. Deficiency of Vitamin C causes: A) Rickets B) Scurvy ✔ C) Night blindness D) Asthma 36. Deficiency of Vitamin D causes: A) Asthma B) Diabetes C) Rickets ✔ D) Scurvy 37. Omnivores eat: A) Plants only B) Animals only C) Both ✔ D) Insects 38. Largest artery in human body: A) Vein B) Artery C) Aorta ✔ D) Capillary 39. Bile is produced by: A) Kidney B) Pancreas C) Intestine D) Liver ✔ 40. Bile is stored in: A) Liver B) Gall bladder ✔ C) Kidney D) Heart 41. Healthy human body has blood: A) 2–3 liters B) 4–5 liters ✔ C) 6–7 liters D) 5–6 liters 42. Insulin is secreted by: A) Liver B) Pancreas ✔ C) Brain D) Kidney 43. Aristotle is father of: A) Physics B) Biology ✔ C) Chemistry D) Astronomy 44. Nitrogen % in air: A) 80% B) 75% C) 78% ✔ D) 82% 45. Dialysis treats: A) Heart failure B) Lung disease C) Kidney failure ✔ D) Brain infection 46. Speed of light: A) 250,000 km/s B) 300,000 km/s ✔ C) 200,000 km/s D) 150,000 km/s 47. One foot equals: A) 12 inches ✔ B) 10 inches C) 15 inches D) 16 inches 48. One kilometer equals: A) 100 m B) 500 m C) 10,000 m D) 1000 m ✔ 49. Fear of light is called: A) Photogenic B) Photonism C) Photophobia ✔ D) Phototropism 50. Speed of sound is fastest in: A) Liquids B) Gases C) Vacuum D) Solids ✔