Everyday Science MCQs
Everyday Science MCQs test your understanding of basic scientific concepts applied in daily life. This section includes questions from physics, chemistry, biology, and scientific phenomena relevant to everyday experiences. Topics include inventions, discoveries, environmental science, energy, human body, and more. These MCQs are widely asked in competitive exams like CSS, PMS, PPSC, FPSC, and NTS. Our curated question bank is structured to make learning easy and effective, with correct answers and topic-wise breakdowns. Practicing these MCQs helps in developing a scientific mindset and improves accuracy in science-based general knowledge sections of job tests. It's an essential subject for scoring high in the general paper.
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).
Q: Most of the oxygen in Earth’s atmosphere is produced by
A) Trees
B) Soil
C) Animals
D) Oceans
✅ Correct Answer: A
Explanation: Plants and trees release oxygen during photosynthesis.
Q: Instrument used to measure blood pressure is
A) Glucometer
B) Sphygmomanometer
C) Thermometer
D) Barometer
✅ Correct Answer: B
Explanation: A sphygmomanometer is used for measuring blood pressure.
Q: The sense involved in detecting taste is located in the
A) Skin
B) Nose
C) Ear
D) Tongue
✅ Correct Answer: D
Explanation: Taste buds on the tongue detect different flavors.
Q: Sound cannot travel through
A) Liquid
B) Vacuum
C) Gas
D) Solid
✅ Correct Answer: B
Explanation: A vacuum lacks particles for sound to travel through.
Q: The energy responsible for causing tides is from the
A) Sun
B) Earth’s core
C) Wind
D) Moon
✅ Correct Answer: D
Explanation: Gravitational pull of the moon influences tides.