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Everyday Science MCQs

8 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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1
Medium pms

Which organ system includes the brain and spinal cord?

  • A Endocrine system
  • B Circulatory system
  • C Nervous system
  • D Respiratory system
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Correct Answer: Option C — Nervous system
Explanation: The nervous system, comprising the brain, spinal cord, and peripheral nerves, controls and coordinates body functions by transmitting electrical and chemical signals. It regulates everything from reflexes to complex thought processes and voluntary movement.
Submitted by: PaperMCQs
2
Medium pms

What is the primary function of the human liver?

  • A Detoxification
  • B Hormone storage
  • C Blood pumping
  • D Gas exchange
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Correct Answer: Option A — Detoxification
Explanation: The liver performs numerous vital functions including detoxifying harmful substances, producing bile for digestion, and storing glycogen for energy. It is one of the few organs capable of regenerating damaged tissue over time.
Submitted by: PaperMCQs
3
Medium pms

What is the name of the process where a solid changes directly to gas?

  • A Condensation
  • B Sublimation
  • C Evaporation
  • D Deposition
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Correct Answer: Option B — Sublimation
Explanation: Sublimation occurs when a solid transitions directly to a gaseous state without passing through the liquid phase, as seen with dry ice (solid carbon dioxide). This process is used in freeze-drying food and pharmaceuticals.
Submitted by: PaperMCQs
4
Medium pms

What is the name of the theory that explains the origin of the universe?

  • A Quantum Theory
  • B String Theory
  • C Steady State Theory
  • D Big Bang Theory
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Correct Answer: Option D — Big Bang Theory
Explanation: The Big Bang Theory proposes that the universe began as an extremely hot, dense point approximately 13.8 billion years ago and has been expanding ever since. It is supported by evidence like cosmic microwave background radiation.
Submitted by: PaperMCQs
5
Medium pms

Which instrument is used to measure humidity?

  • A Hygrometer
  • B Anemometer
  • C Thermometer
  • D Barometer
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Correct Answer: Option A — Hygrometer
Explanation: A hygrometer measures the amount of moisture or humidity present in the air. This information is crucial for weather forecasting, agriculture, and indoor climate control, as humidity affects comfort and the growth of mold.
Submitted by: PaperMCQs
6
Medium pms

Which sense organ is responsible for detecting sound?

  • A Nose
  • B Tongue
  • C Eye
  • D Ear
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Correct Answer: Option D — Ear
Explanation: The ear detects sound waves and converts them into nerve signals interpreted by the brain. It also plays a crucial role in maintaining balance through the vestibular system located in the inner ear.
Submitted by: PaperMCQs
7
Medium pms

Which vitamin is essential for good vision?

  • A Vitamin A
  • B Vitamin B12
  • C Vitamin D
  • D Vitamin C
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Correct Answer: Option A — Vitamin A
Explanation: Vitamin A is crucial for maintaining healthy vision, particularly for seeing in low light conditions, as it forms a component of the light-sensitive pigment rhodopsin in the retina. Deficiency can lead to night blindness.
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8
Medium pms

Which mineral is essential for strong bones and teeth?

  • A Calcium
  • B Magnesium
  • C Sodium
  • D Potassium
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Correct Answer: Option A — Calcium
Explanation: Calcium is vital for building and maintaining strong bones and teeth, and also plays a role in muscle function and nerve signaling. Dairy products, leafy greens, and fortified foods are common dietary sources of calcium.
Submitted by: PaperMCQs
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