Everyday Science MCQs
Everyday Science MCQs cover physics, chemistry, biology, inventions, environment, and human body basics. Ideal for CSS, PMS, PPSC, FPSC, and NTS exams, they boost scientific awareness and accuracy in general knowledge sections.
Q: Electricity is generated in a hydropower plant using
A) Fire
B) Air
C) Water flow
D) Sunlight
✅ Correct Answer: C
Explanation: Flowing water drives turbines to generate electricity.
Q: The human body’s main source of energy is
A) Vitamins
B) Carbohydrates
C) Fats
D) Proteins
✅ Correct Answer: B
Explanation: Carbohydrates are broken down to provide energy.
Q: The greenhouse gas released by burning fossil fuels is
A) Methane
B) Helium
C) Oxygen
D) Carbon dioxide
✅ Correct Answer: D
Explanation: Carbon dioxide traps heat and contributes to global warming.
Q: Skin color in humans is determined by
A) Keratin
B) Collagen
C) Hemoglobin
D) Melanin
✅ Correct Answer: D
Explanation: Melanin pigment is responsible for skin color.
Q: The compound formed when hydrogen burns in air is
A) H2O
B) HO
C) O2
D) H2
✅ Correct Answer: A
Explanation: Hydrogen combines with oxygen to form water (H2O).