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 unit of sound intensity is
A) Joule
B) Decibel
C) Pascal
D) Ampere
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Correct Answer: B
Explanation: Decibel measures how loud a sound is.
Q: The human body excretes waste through the
A) Skin
B) All of these
C) Lungs
D) Kidneys
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Correct Answer: B
Explanation: Body eliminates waste via skin, lungs, and kidneys.
Q: The sense organ responsible for detecting pressure and temperature is
A) Tongue
B) Skin
C) Eye
D) Nose
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Correct Answer: B
Explanation: Skin contains receptors for touch, pressure, and temperature.
Q: Chemical energy in batteries is converted to
A) Heat only
B) Sound
C) Light
D) Electrical energy
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Correct Answer: D
Explanation: Batteries convert chemical energy into electricity.
Q: The ozone layer in the atmosphere absorbs
A) Infrared rays
B) X-rays
C) Visible light
D) Ultraviolet rays
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Correct Answer: D
Explanation: Ozone filters harmful UV rays from sunlight.