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Everyday Science MCQs

91 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
Easy nts

What is the term for organisms that make their own food using sunlight?

  • A Parasites
  • B Decomposers
  • C Heterotrophs
  • D Autotrophs
Permalink
Correct Answer: Option D — Autotrophs
Explanation: Autotrophs, such as plants and algae, produce their own food through photosynthesis, converting sunlight, water, and carbon dioxide into glucose. They form the base of most food chains, supporting nearly all other life forms.
Submitted by: PaperMCQs
2
Easy nts

Which bird is known for its ability to mimic human speech?

  • A Eagle
  • B Sparrow
  • C Parrot
  • D Crow
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Correct Answer: Option C — Parrot
Explanation: Parrots are well known for their ability to mimic human speech and other sounds due to their highly developed vocal learning abilities. Species like the African Grey Parrot are particularly noted for their vocabulary and cognitive skills.
Submitted by: PaperMCQs
3
Easy nts

Which part of the brain controls balance and coordination?

  • A Cerebrum
  • B Medulla
  • C Hypothalamus
  • D Cerebellum
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Correct Answer: Option D — Cerebellum
Explanation: The cerebellum, located at the back of the brain, coordinates voluntary movements, posture, and balance. Damage to this region can result in difficulty walking, poor coordination, and tremors, a condition known as ataxia.
Submitted by: PaperMCQs
4
Easy nts

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

  • A Lungs
  • B Kidneys
  • C Heart
  • D Liver
Permalink
Correct Answer: Option B — Kidneys
Explanation: The kidneys filter waste products and excess fluids from the blood, forming urine for excretion. Each kidney contains about a million nephrons, tiny filtering units essential for maintaining the body's fluid and electrolyte balance.
Submitted by: PaperMCQs
5
Easy fpsc ppsc nts

Which gas causes the fizzing and bubbling when a carbonated drink bottle is opened?

  • A Oxygen
  • B Nitrogen
  • C Methane
  • D Carbon dioxide
Permalink
Correct Answer: Option D — Carbon dioxide
Explanation: Carbon dioxide dissolved under pressure in carbonated drinks rapidly escapes as gas forming bubbles when the bottle is opened and pressure drops allowing the gas to come out of solution.
Submitted by: PaperMCQs
6
Easy ppsc nts

Which planet is known as the Blue Planet due to its large amount of surface water?

  • A Mars
  • B Earth
  • C Venus
  • D Saturn
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Correct Answer: Option B — Earth
Explanation: Earth is called the Blue Planet because approximately 71 percent of its surface is covered by water giving it a distinctive blue appearance when viewed from space.
Submitted by: PaperMCQs
7
Easy fpsc ppsc nts

Which type of electromagnetic radiation is used in airport security scanners to see through luggage?

  • A X-rays
  • B Ultraviolet
  • C Infrared
  • D Gamma rays
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Correct Answer: Option A — X-rays
Explanation: X-rays are used in airport security scanners because they penetrate low density materials like clothing but are absorbed by denser materials like metals revealing hidden objects.
Submitted by: PaperMCQs
8
Easy ppsc nts

Which process in bread making causes dough to rise releasing CO2?

  • A Oxidation of flour
  • B Protein denaturation
  • C Fermentation by yeast
  • D Sublimation of water
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Correct Answer: Option C — Fermentation by yeast
Explanation: Yeast in bread dough ferments sugars and releases carbon dioxide gas which gets trapped in the dough forming bubbles causing it to rise and giving bread its light airy texture.
Submitted by: PaperMCQs
9
Easy fpsc ppsc nts

Which natural phenomenon occurs when the Earth's crust suddenly releases energy causing ground shaking?

  • A Earthquake
  • B Volcanic eruption
  • C Tsunami
  • D Cyclone
Permalink
Correct Answer: Option A — Earthquake
Explanation: An earthquake occurs when energy stored in the Earth's crust is suddenly released along fault lines causing seismic waves that make the ground shake and can cause widespread damage.
Submitted by: PaperMCQs
10
Easy fpsc ppsc nts

Which phenomenon explains why the handles of pots and pans are made from plastic or wood rather than metal?

  • A Metal is too heavy
  • B Plastic handles are magnetic
  • C Plastic and wood are poor heat conductors preventing burns
  • D Wood handles look better
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Correct Answer: Option C — Plastic and wood are poor heat conductors preventing burns
Explanation: Plastic and wood are poor conductors of heat meaning little heat transfers from the hot pot or pan to the handle preventing burns when cooking at high temperatures.
Submitted by: PaperMCQs
11
Easy fpsc ppsc nts

Which common safety device in electrical circuits breaks the circuit when current exceeds a safe limit to prevent fires?

  • A Switch
  • B Fuse
  • C Resistor
  • D Capacitor
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Correct Answer: Option B — Fuse
Explanation: A fuse is a safety device containing a thin wire that melts and breaks the circuit if current exceeds a safe limit protecting appliances and wiring from fire risk.
Submitted by: PaperMCQs
12
Easy fpsc ppsc nts

Which common process happens when iron is exposed to oxygen and moisture over time forming a reddish-brown coating?

  • A Sublimation
  • B Reduction
  • C Neutralisation
  • D Oxidation forming iron oxide rust
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Correct Answer: Option D — Oxidation forming iron oxide rust
Explanation: Rusting is an oxidation process where iron reacts with oxygen and water to form iron oxide a reddish-brown substance that weakens and corrodes iron structures over time.
Submitted by: PaperMCQs
13
Easy ppsc nts

Which type of teeth are flat and chisel-shaped primarily used for cutting and biting food?

  • A Canines
  • B Molars
  • C Premolars
  • D Incisors
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Correct Answer: Option D — Incisors
Explanation: Incisors are the eight flat chisel-shaped front teeth four in each jaw used primarily for cutting and biting into food during eating.
Submitted by: PaperMCQs
14
Easy ppsc nts

Which organ in the human body stores and concentrates urine before it is excreted?

  • A Kidney
  • B Urethra
  • C Ureter
  • D Bladder
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Correct Answer: Option D — Bladder
Explanation: The urinary bladder stores urine produced by the kidneys until it is expelled from the body through the urethra during urination.
Submitted by: PaperMCQs
15
Easy fpsc ppsc nts

Which common everyday substance is used to test for the presence of starch in food by turning blue-black?

  • A Iodine solution
  • B Litmus paper
  • C Benedict's solution
  • D Biuret reagent
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Correct Answer: Option A — Iodine solution
Explanation: Iodine solution turns blue-black in the presence of starch making it a simple and reliable test for detecting starch in food items during food science investigations.
Submitted by: PaperMCQs
16
Easy ppsc nts

Which cold-blooded vertebrate group lives entirely in water breathing through gills throughout its life?

  • A Fish
  • B Amphibians
  • C Reptiles
  • D Mammals
Permalink
Correct Answer: Option A — Fish
Explanation: Fish are cold-blooded aquatic vertebrates that breathe through gills throughout their entire lives extracting dissolved oxygen from water as they swim.
Submitted by: PaperMCQs
17
Easy fpsc ppsc nts

Which warm-blooded animal group nourishes its young with milk and typically gives birth to live young?

  • A Birds
  • B Reptiles
  • C Amphibians
  • D Mammals
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Correct Answer: Option D — Mammals
Explanation: Mammals are warm-blooded vertebrates that nourish their young with milk secreted from mammary glands most give birth to live young and have body hair or fur.
Submitted by: PaperMCQs
18
Easy ppsc nts

Which cold-blooded animal group is covered in scales breathes air through lungs and lays eggs on land?

  • A Amphibians
  • B Reptiles
  • C Fish
  • D Arthropods
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Correct Answer: Option B — Reptiles
Explanation: Reptiles are cold-blooded animals covered in scales that breathe through lungs and typically lay leathery eggs on land including snakes lizards turtles and crocodiles.
Submitted by: PaperMCQs
19
Easy fpsc ppsc nts

Which type of animal can live both on land and in water, such as frogs and toads?

  • A Reptiles
  • B Mammals
  • C Amphibians
  • D Fish
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Correct Answer: Option C — Amphibians
Explanation: Amphibians are cold-blooded animals adapted to live both on land and in water breathing through gills as larvae and developing lungs as adults examples include frogs toads and salamanders.
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20
Easy ppsc nts

Which animal group lacks a backbone and includes insects worms and molluscs?

  • A Vertebrates
  • B Amphibians
  • C Reptiles
  • D Invertebrates
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Correct Answer: Option D — Invertebrates
Explanation: Invertebrates are animals that lack a backbone representing approximately 97 percent of all animal species including insects worms spiders and molluscs.
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