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Everyday Science MCQs

387 Questions Subject Test
Subject Preparation Guide

Prepare Everyday Science with confidence

Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.

Human BodyEnergyEnvironmentScientific Inventions
Important for general science portions of CSS, PMS, FPSC and provincial tests.
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381
Easy ppsc nts

What is the normal body temperature of a healthy human in degrees Fahrenheit?

  • A 95.6
  • B 98.6
  • C 101.6
  • D 93.6
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Correct Answer: Option B — 98.6
Explanation: The average normal human body temperature is approximately 98.6 degrees Fahrenheit equivalent to 37 degrees Celsius though slight variations are normal among individuals throughout the day.
Submitted by: PaperMCQs
382
Easy fpsc ppsc nts

Which gas do plants primarily absorb during photosynthesis?

  • A Oxygen
  • B Carbon dioxide
  • C Nitrogen
  • D Hydrogen
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Correct Answer: Option B — Carbon dioxide
Explanation: Plants absorb carbon dioxide from the atmosphere during photosynthesis using sunlight and water to convert it into glucose and oxygen which is released as a byproduct.
Submitted by: PaperMCQs
383
Easy fpsc ppsc nts

Which organ in the human body is primarily responsible for filtering blood and removing waste?

  • A Liver
  • B Kidney
  • C Spleen
  • D Pancreas
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Correct Answer: Option B — Kidney
Explanation: The kidneys filter blood to remove metabolic waste products and excess fluids excreting them as urine while also regulating electrolyte balance and blood pressure in the body.
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384
Easy fpsc ppsc nts

Which vitamin is primarily synthesized in human skin upon sunlight exposure?

  • A Vitamin A
  • B Vitamin C
  • C Vitamin D
  • D Vitamin K
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Correct Answer: Option C — Vitamin D
Explanation: Vitamin D is synthesized in the skin when exposed to ultraviolet B rays from sunlight and is essential for calcium absorption and maintaining healthy bones and immune function.
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385
Easy ppsc nts

Which blood component is primarily responsible for clotting?

  • A Red blood cells
  • B White blood cells
  • C Platelets
  • D Plasma
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Correct Answer: Option C — Platelets
Explanation: Platelets are small cell fragments in the blood that clump together at injury sites to form clots preventing excessive bleeding and initiating the wound healing process.
Submitted by: PaperMCQs
386
Easy fpsc ppsc nts

Which part of the human eye controls the amount of light entering it?

  • A Retina
  • B Cornea
  • C Iris
  • D Lens
Permalink
Correct Answer: Option C — Iris
Explanation: The iris is the colored muscular structure that controls pupil size thereby regulating the amount of light entering the eye to ensure clear vision under varying light conditions.
Submitted by: PaperMCQs
387
Easy ppsc nts

Which gas is most abundant in the Earth's atmosphere?

  • A Oxygen
  • B Nitrogen
  • C Carbon dioxide
  • D Argon
Permalink
Correct Answer: Option B — Nitrogen
Explanation: Nitrogen makes up about 78 percent of the Earth's atmosphere by volume making it the most abundant atmospheric gas far exceeding oxygen which constitutes roughly 21 percent.
Submitted by: PaperMCQs
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