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Everyday Science MCQs

29 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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Subject Test

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1
Hard ppsc

Which vitamin is important for wound healing?

  • A Vitamin D
  • B Vitamin B12
  • C Vitamin E
  • D Vitamin C
Permalink
Correct Answer: Option D — Vitamin C
Explanation: Vitamin C plays a crucial role in wound healing by supporting collagen synthesis, a protein essential for skin, blood vessels, and connective tissue repair. It also has antioxidant properties that help protect cells from damage.
Submitted by: PaperMCQs
2
Hard ppsc

Which gas is released by volcanoes in large quantities?

  • A Oxygen
  • B Sulfur dioxide
  • C Nitrogen
  • D Helium
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Correct Answer: Option B — Sulfur dioxide
Explanation: Volcanic eruptions release large quantities of sulfur dioxide along with water vapor and carbon dioxide. Sulfur dioxide can form aerosols in the atmosphere that reflect sunlight, temporarily cooling the Earth's climate after major eruptions.
Submitted by: PaperMCQs
3
Hard ppsc

What is the term for the study of weather patterns?

  • A Meteorology
  • B Geology
  • C Oceanography
  • D Astronomy
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Correct Answer: Option A — Meteorology
Explanation: Meteorology is the scientific study of the atmosphere, focusing on weather processes and forecasting. Meteorologists use satellites, radar, and computer models to predict phenomena such as storms, rainfall, and temperature changes.
Submitted by: PaperMCQs
4
Hard ppsc

Which disease is caused by a deficiency of iodine?

  • A Goiter
  • B Rickets
  • C Scurvy
  • D Anemia
Permalink
Correct Answer: Option A — Goiter
Explanation: Iodine deficiency causes goiter, an enlargement of the thyroid gland as it struggles to produce enough thyroid hormone. Iodized salt programs have significantly reduced goiter prevalence worldwide, especially in developing countries.
Submitted by: PaperMCQs
5
Hard css fpsc ppsc

Which famous experiment proved that the Earth orbits the Sun rather than the Sun orbiting the Earth?

  • A Galileo's telescope observations
  • B Newton's apple experiment
  • C Foucault pendulum demonstration
  • D Copernicus's naked eye observations
Permalink
Correct Answer: Option A — Galileo's telescope observations
Explanation: Galileo's telescope observations in 1610 of Jupiter's moons and Venus's phases provided key evidence supporting the heliocentric model that Earth orbits the Sun.
Submitted by: PaperMCQs
6
Hard css fpsc ppsc

Which photoreceptor cells in the eye are responsible for vision in dim light and cannot distinguish colours?

  • A Cone cells
  • B Ganglion cells
  • C Bipolar cells
  • D Rod cells
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Correct Answer: Option D — Rod cells
Explanation: Rod cells are the photoreceptors in the retina specialised for detecting light in dim conditions allowing vision in low light but they cannot distinguish between colours.
Submitted by: PaperMCQs
7
Hard css fpsc ppsc

Which photoreceptor cells in the eye are responsible for colour vision and function best in bright light?

  • A Cone cells
  • B Rod cells
  • C Ganglion cells
  • D Bipolar cells
Permalink
Correct Answer: Option A — Cone cells
Explanation: Cone cells are the photoreceptors in the retina responsible for colour vision and sharp detail and they function best under bright lighting conditions unlike rod cells.
Submitted by: PaperMCQs
8
Hard css fpsc ppsc

Which substance in a catalytic converter helps reduce harmful vehicle exhaust emissions?

  • A Iron
  • B Platinum and palladium
  • C Copper
  • D Aluminium
Permalink
Correct Answer: Option B — Platinum and palladium
Explanation: Catalytic converters use platinum and palladium as catalysts to convert harmful exhaust gases like carbon monoxide nitrogen oxides and unburnt hydrocarbons into less harmful substances.
Submitted by: PaperMCQs
9
Hard css fpsc ppsc

Which common kitchen appliance uses the principle of electromagnetic induction specifically to heat food through magnetic coupling?

  • A Induction cooker
  • B Microwave oven
  • C Conventional oven
  • D Electric kettle
Permalink
Correct Answer: Option A — Induction cooker
Explanation: An induction cooker uses electromagnetic induction to generate electric currents directly in ferromagnetic cookware producing heat through electrical resistance within the pot or pan itself.
Submitted by: PaperMCQs
10
Hard css fpsc ppsc

Which type of joint is found in the skull where bones are fixed together and allow no movement?

  • A Fixed joint or suture
  • B Ball and socket
  • C Hinge joint
  • D Gliding joint
Permalink
Correct Answer: Option A — Fixed joint or suture
Explanation: Fixed joints called sutures are found in the skull where bones are tightly interlocked by fibrous tissue allowing no movement providing protection to the brain.
Submitted by: PaperMCQs
11
Hard css fpsc ppsc

Which naturally occurring radioactive element was discovered by Marie Curie and named after her home country?

  • A Uranium
  • B Radium
  • C Polonium
  • D Thorium
Permalink
Correct Answer: Option C — Polonium
Explanation: Marie Curie discovered polonium in 1898 and named it after her home country Poland making it the first element to be named after a country.
Submitted by: PaperMCQs
12
Hard css fpsc ppsc

Which part of the nervous system is called the automatic system and controls involuntary body functions like digestion?

  • A Somatic nervous system
  • B Central nervous system
  • C Autonomic nervous system
  • D Peripheral nervous system
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Correct Answer: Option C — Autonomic nervous system
Explanation: The autonomic nervous system regulates involuntary functions like digestion heartbeat and breathing without conscious effort and is divided into sympathetic and parasympathetic divisions.
Submitted by: PaperMCQs
13
Hard fpsc ppsc nts

Which layer of the skin provides insulation and stores energy as fat?

  • A Melanocyte layer
  • B Epidermis
  • C Dermis
  • D Hypodermis
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Correct Answer: Option A — Melanocyte layer
Explanation: The hypodermis also called subcutaneous tissue is the deepest skin layer that stores fat for insulation energy reserve and cushioning against physical impact.
Submitted by: PaperMCQs
14
Hard fpsc ppsc nts

Which natural phenomenon produces colorful displays of light in polar regions due to solar particles interacting with the atmosphere?

  • A Rainbow
  • B Aurora
  • C Halo
  • D Mirage
Permalink
Correct Answer: Option B — Aurora
Explanation: Auroras occur when charged particles from the sun interact with gases in Earth's upper atmosphere near the poles producing colorful displays of light known as the northern or southern lights.
Submitted by: PaperMCQs
15
Hard fpsc ppsc nts

Which scientific law explains how a changing magnetic field can induce an electric current in a conductor?

  • A Ohm's law
  • B Faraday's law of electromagnetic induction
  • C Newton's law
  • D Coulomb's law
Permalink
Correct Answer: Option B — Faraday's law of electromagnetic induction
Explanation: Faraday's law of electromagnetic induction explains how a changing magnetic field through a conductor can induce an electric current forming the basis for generators and transformers.
Submitted by: PaperMCQs
16
Hard fpsc ppsc nts

Which type of precipitation forms as layered ice balls created by strong updrafts within thunderstorms?

  • A Snow
  • B Sleet
  • C Hail
  • D Frost
Permalink
Correct Answer: Option C — Hail
Explanation: Hail forms as layered ice balls created by strong updrafts within thunderstorms that carry water droplets repeatedly through freezing layers of the atmosphere before falling to the ground.
Submitted by: PaperMCQs
17
Hard fpsc ppsc nts

Which type of precipitation forms when raindrops freeze before reaching the ground in cold conditions?

  • A Snow
  • B Sleet
  • C Hail
  • D Drizzle
Permalink
Correct Answer: Option B — Sleet
Explanation: Sleet forms when raindrops freeze into ice pellets before reaching the ground typically occurring when a layer of freezing air exists near the surface during winter storms.
Submitted by: PaperMCQs
18
Hard fpsc ppsc nts

Which B vitamin deficiency commonly causes the disease beriberi affecting the nervous and cardiovascular systems?

  • A Vitamin B1 Thiamine
  • B Vitamin B6
  • C Vitamin B12
  • D Vitamin B2
Permalink
Correct Answer: Option A — Vitamin B1 Thiamine
Explanation: Beriberi is caused by a deficiency of Vitamin B1 or thiamine affecting the nervous and cardiovascular systems and was historically common among populations consuming polished rice.
Submitted by: PaperMCQs
19
Hard fpsc ppsc nts

Which white blood cell type is the most abundant and primarily fights bacterial infections?

  • A Lymphocytes
  • B Neutrophils
  • C Eosinophils
  • D Monocytes
Permalink
Correct Answer: Option B — Neutrophils
Explanation: Neutrophils are the most abundant type of white blood cells and serve as the first line of defense against bacterial infections by engulfing and destroying pathogens.
Submitted by: PaperMCQs
20
Hard fpsc ppsc nts

Which white blood cell type is primarily responsible for producing antibodies against pathogens?

  • A Neutrophils
  • B Lymphocytes
  • C Eosinophils
  • D Basophils
Permalink
Correct Answer: Option B — Lymphocytes
Explanation: Lymphocytes including B cells and T cells are primarily responsible for producing antibodies and coordinating the immune response against specific pathogens in the body.
Submitted by: PaperMCQs
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