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: The hormone responsible for lowering blood sugar is
A) Adrenaline
B) Glucagon
C) Thyroxine
D) Insulin
✅ Correct Answer: D
Explanation: Insulin regulates blood glucose by lowering it.
Q: A chemical change always results in
A) Change in shape
B) Change in temperature
C) New substance
D) Color change only
✅ Correct Answer: C
Explanation: A new substance with different properties is formed.
Q: The largest planet in the solar system is
A) Saturn
B) Uranus
C) Earth
D) Jupiter
✅ Correct Answer: D
Explanation: Jupiter is the biggest planet in terms of mass and size.
Q: The source of vitamin A is
A) Potato
B) Rice
C) Carrot
D) Banana
✅ Correct Answer: C
Explanation: Carrots are rich in beta-carotene, which converts to vitamin A.
Q: The part of the human skeleton that protects the brain is called
A) Pelvis
B) Spine
C) Ribcage
D) Skull
✅ Correct Answer: D
Explanation: The skull encases and protects the brain.
Q: The layer of atmosphere where weather changes occur is
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
✅ Correct Answer: A
Explanation: Troposphere is the lowest layer where weather forms.
Q: The freezing point of water is
A) 0°C
B) 10°C
C) 32°C
D) 0°F
✅ Correct Answer: A
Explanation: Water freezes at 0 degrees Celsius.
Q: The vitamin essential for blood clotting is
A) Vitamin E
B) Vitamin D
C) Vitamin A
D) Vitamin K
✅ Correct Answer: D
Explanation: Vitamin K plays a key role in blood coagulation.
Q: The chemical used for water purification is
A) Oxygen
B) Nitrogen
C) Chlorine
D) Hydrogen
✅ Correct Answer: C
Explanation: Chlorine kills bacteria and disinfects water.
Q: The planet closest to the Sun is
A) Venus
B) Mercury
C) Earth
D) Mars
✅ Correct Answer: B
Explanation: Mercury is the nearest planet to the Sun.