21. Which planet is known for its prominent ring system?
✅ C. Saturn
a: Mercury | b: Mars | c: Saturn | d: Venus Read more
Everyday Science MCQs – Page 2
22. What is the chemical symbol for oxygen?
✅ A. O
a: O | b: Og | c: Ox | d: Oy Read more
23. Which layer helps protect Earth from much of the Sun’s ultraviolet radiation?
✅ B. Ozone layer
a: Mantle | b: Ozone layer | c: Tropospheric dust layer | d: Inner core Read more
24. Which gas is essential for most human cellular respiration?
✅ B. Oxygen
a: Hydrogen only | b: Oxygen | c: Chlorine | d: Neon Read more
25. Which particle has a negative electric charge?
✅ A. Electron
a: Electron | b: Neutron | c: Photon | d: Proton Read more
26. Which state of matter has a definite volume but no fixed shape?
✅ B. Liquid
a: Solid | b: Liquid | c: Plasma only | d: Gas Read more
27. Which organ filters blood to produce urine?
✅ B. Kidney
a: Stomach | b: Kidney | c: Spleen | d: Pancreas Read more
28. Which molecule carries genetic information in most living organisms?
✅ A. DNA
a: DNA | b: Starch | c: Chlorophyll | d: Haemoglobin Read more
29. What is the pH of a neutral solution at about 25°C?
✅ B. 7
a: 1 | b: 7 | c: 4 | d: 14 Read more
30. Which planet is the largest in the Solar System?
✅ C. Jupiter
a: Venus | b: Earth | c: Jupiter | d: Mars Read more
31. Which type of energy is associated with motion?
✅ C. Kinetic energy
a: Potential energy only | b: Nuclear charge | c: Kinetic energy | d: Chemical energy only Read more
32. Which process changes liquid water into water vapour?
✅ C. Evaporation
a: Deposition | b: Freezing | c: Evaporation | d: Condensation Read more
33. Which instrument measures atmospheric pressure?
✅ D. Barometer
a: Thermometer | b: Hygrometer | c: Anemometer | d: Barometer Read more
34. What is the center of an atom called?
✅ C. Nucleus
a: Molecule | b: Cell membrane | c: Nucleus | d: Electron shell Read more
35. What is the basic unit of life?
✅ A. Cell
a: Cell | b: Organ | c: Atom | d: Tissue Read more
36. At sea level, water boils at approximately what temperature?
✅ B. 100°C
a: 50°C | b: 100°C | c: 150°C | d: 0°C Read more
37. What is the largest organ of the human body?
✅ C. Skin
a: Lung | b: Liver | c: Skin | d: Heart Read more
38. Which blood cells primarily carry oxygen?
✅ D. Red blood cells
a: Platelets | b: Neurons | c: White blood cells | d: Red blood cells Read more
39. Which part of a plant commonly absorbs water from soil?
✅ A. Roots
a: Roots | b: Petals | c: Fruits | d: Flowers Read more
40. What is the SI unit of electric current?
✅ C. Ampere
a: Watt | b: Ohm | c: Ampere | d: Volt Read more