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 human blood is red due to the presence of
A) Myoglobin
B) Hemoglobin
C) Plasma
D) Chlorophyll
✅ Correct Answer: B
Explanation: Hemoglobin binds with oxygen and gives red color to blood.
Q: The basic unit of computer memory is
A) Byte
B) Chip
C) Hertz
D) Bit
✅ Correct Answer: D
Explanation: Bit is the smallest unit of data in computing.
Q: The function of white blood cells is to
A) Clot blood
B) Digest food
C) Fight infections
D) Transport oxygen
✅ Correct Answer: C
Explanation: WBCs are part of the immune system fighting pathogens.
Q: Nuclear energy is released from
A) Atomic explosion
B) Lightning
C) Fission or fusion
D) Chemical reaction
✅ Correct Answer: C
Explanation: Fission and fusion are nuclear processes that release energy.
Q: The part of the ear that receives sound vibrations is
A) Eustachian tube
B) Cochlea
C) Pinna
D) Drum
✅ Correct Answer: D
Explanation: The eardrum vibrates in response to sound waves.