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Everyday Science MCQs

17 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
Hard pms

What is the name of Earth's only natural satellite?

  • A Phobos
  • B Titan
  • C Europa
  • D The Moon
Permalink
Correct Answer: Option D — The Moon
Explanation: The Moon is Earth's only natural satellite, orbiting our planet approximately every 27.3 days. It influences ocean tides through gravitational pull and has been a subject of extensive scientific study and human exploration since the 1960s.
Submitted by: PaperMCQs
2
Medium pms

Which organ system includes the brain and spinal cord?

  • A Endocrine system
  • B Circulatory system
  • C Nervous system
  • D Respiratory system
Permalink
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
3
Medium pms

What is the primary function of the human liver?

  • A Detoxification
  • B Hormone storage
  • C Blood pumping
  • D Gas exchange
Permalink
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
4
Hard pms

Which type of rock is formed from cooled magma or lava?

  • A Igneous rock
  • B Metamorphic rock
  • C Sedimentary rock
  • D Limestone
Permalink
Correct Answer: Option A — Igneous rock
Explanation: Igneous rocks form when molten magma or lava cools and solidifies, either underground or on the Earth's surface. Examples include granite, formed slowly underground, and basalt, formed quickly from lava at the surface.
Submitted by: PaperMCQs
5
Medium pms

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

  • A Condensation
  • B Sublimation
  • C Evaporation
  • D Deposition
Permalink
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
6
Easy pms

Which natural phenomenon is measured using the Richter scale?

  • A Earthquakes
  • B Hurricanes
  • C Volcanic eruptions
  • D Tsunamis
Permalink
Correct Answer: Option A — Earthquakes
Explanation: The Richter scale measures the magnitude of earthquakes based on the energy released at the source. Developed by Charles Richter in 1935, each whole number increase represents roughly 32 times more energy released.
Submitted by: PaperMCQs
7
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
Permalink
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
8
Medium pms

Which instrument is used to measure humidity?

  • A Hygrometer
  • B Anemometer
  • C Thermometer
  • D Barometer
Permalink
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
9
Hard pms

What is the term for a substance that speeds up a chemical reaction?

  • A Reactant
  • B Solvent
  • C Catalyst
  • D Inhibitor
Permalink
Correct Answer: Option C — Catalyst
Explanation: A catalyst increases the rate of a chemical reaction without being consumed in the process. Enzymes act as biological catalysts, speeding up metabolic reactions essential for life at much lower temperatures than would otherwise be needed.
Submitted by: PaperMCQs
10
Medium pms

Which sense organ is responsible for detecting sound?

  • A Nose
  • B Tongue
  • C Eye
  • D Ear
Permalink
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.
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11
Easy pms

What is the primary function of the respiratory system?

  • A Digestion
  • B Circulation
  • C Gas exchange
  • D Excretion
Permalink
Correct Answer: Option C — Gas exchange
Explanation: The respiratory system's primary function is gas exchange, taking in oxygen and expelling carbon dioxide through the lungs. This process supplies oxygen to the bloodstream for cellular respiration and removes waste gases from the body.
Submitted by: PaperMCQs
12
Medium pms

Which vitamin is essential for good vision?

  • A Vitamin A
  • B Vitamin B12
  • C Vitamin D
  • D Vitamin C
Permalink
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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13
Easy pms

What is the study of fungi called?

  • A Mycology
  • B Botany
  • C Entomology
  • D Zoology
Permalink
Correct Answer: Option A — Mycology
Explanation: Mycology is the scientific study of fungi, including their genetic and biochemical properties, taxonomy, and use to humans in food, medicine, and industry. Fungi include yeasts, molds, and mushrooms, playing key ecological roles.
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14
Medium pms

Which mineral is essential for strong bones and teeth?

  • A Calcium
  • B Magnesium
  • C Sodium
  • D Potassium
Permalink
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.
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15
Hard pms

What is the process by which liquid changes to gas called?

  • A Sublimation
  • B Evaporation
  • C Precipitation
  • D Condensation
Permalink
Correct Answer: Option B — Evaporation
Explanation: Evaporation is the process where liquid molecules gain enough energy to escape into the gaseous state, typically occurring at the surface of a liquid below its boiling point. It plays a key role in the water cycle.
Submitted by: PaperMCQs
16
Easy pms

What is the unit used to measure atmospheric pressure?

  • A Watt
  • B Pascal
  • C Newton
  • D Joule
Permalink
Correct Answer: Option B — Pascal
Explanation: Atmospheric pressure is measured in Pascals (Pa), named after French scientist Blaise Pascal. Meteorologists often use hectopascals or millibars, with standard atmospheric pressure at sea level being approximately 1013.25 hectopascals.
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17
Hard pms

Which gas do plants absorb from the atmosphere for photosynthesis?

  • A Nitrogen
  • B Carbon dioxide
  • C Hydrogen
  • D Oxygen
Permalink
Correct Answer: Option B — Carbon dioxide
Explanation: Plants absorb carbon dioxide through tiny pores called stomata and use it, along with sunlight and water, to produce glucose and oxygen during photosynthesis. This process is vital for maintaining atmospheric oxygen levels.
Submitted by: PaperMCQs
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