One-liner PPSC Everyday Science questions with answers, compiled from the past five years of Punjab Public Service Commission exam papers.
PPSC Everyday Science One-Liner MCQs
Water has maximum density at: 4 c
The ozone layer protects the earth from rays sent by the sun: Ultraviolet rays
A unit of length equal to the average distance between the earth and sun is called: Astronomical unit
The inferred radiation by sun are strongly absorbed by: Water
Which of the following are ozone depleting substances: Acetylene
The study of rock is called: Petrology
The study of stars is known as: Astronomy
Which one is not a vestigial organ of human being: Eye lid
Radioactivity measured by which device: Geiger counter
The ozone layer is at height of ___kilometers from the surface of the Earth: 15-40 kilometers
One nautical mile is equal to how many kilometers: 1852 kilometers
Which is the largest gland in the human body: Liver
The Lunar eclipse occurs when: Earth is between the sun and the moon
Deficiency of Vitamin D results in: Rickets
Which protein factory for RNA: Ribo somes
Package of enzymes bounded by a membrane called a: Golgi apparatus
What element is used in welding: oxygen and acetylene
The ozone layer prevents __ radiation from entering the atmosphere: Ultraviolet
The study of insects is called: entomology
The doctor known as an eye-specialist is: Ophthalmologist
What is the average distance between the Sun and the Earth: 150 million kilometers
The male reproductive part of the flower is called: Stamen
The interaction of living organisms with each other and with their environment is: Ecosystem
Which system is responsible to communicate and coordinate for the body functions: Nervous System
Cataract is the disease of: Eye
Molten rock that lies beneath the Earth’s surface is called: Magma
Threadlike structure in fungi is called: Hypha
Which part of plants produces pollen: Stamen
Which planet has no moon: Venus
Study of the evolution of man as an animal is known as: Anthropology
What is the process called when gas moves from an area of high pressure to an area of low pressure: Effusion
The movement of molecules from high to low concentration, requiring no energy, is called: Diffusion
It is not advisable to sleep under tree at night because of the release of: Carbon dioxide
Which gas can be accumulated in poorly ventilated buildings: Radon
The main constituent of Hemoglobin is: Iron
Which of the following is known for its ability to replicate itself: Bacteria
By what percentage does water expand when it freezes: 9%
The most important stimulus for tea leaves: Caffeine
Which layer of the Earth is considered the most important: Mantle
In which is more electricity conducted: Steel
Ice floats in water because of its: Density
The potential of pure water is: Zero
Deficiency of Iodine causes: Goiter
Another name for baking soda: Sodium bicarbonate
Warm blooded animals maintain a high body temperature for faster: Movement
A battery converts electric energy into which type of energy: Chemical Energy
The study related to animals is called: Zoology
A plant that cannot prepare its own food is called: Heterotroph
Dinosaurs belong to which group of animals: Reptiles
Why is the spleen called the graveyard of RBCs: It breaks down old and damaged RBCs
Who discover gravity: Isaac Newton
Which is not ruminant animal: Horse
The only species of the cat family that lives and hunts in groups are: Lions
Which disease is caused by deficiency of Calcium: Rickets
Joule is the unit of: Energy
Virally infected cells produce and release small proteins called: Interferons
When light travels from a denser medium to a rare medium. It bends due to: Refraction
Which part of the donor’s eye is utilized in eye donation: Cornea
What is meant by “Etymology”: The study of the origins of words and how they have changed over time
Ornithology is the science which deals with: Study of birds
Decibel is the unit which can be used to measure the: Intensity of sound pressure
Alzheimer is _____ disease: Neurological
Which chemical in tobacco causes a smoker to be addicted to smoking: Nicotine
Blood leaves the heart through arteries. The main artery leaving the left ventricle is called: Aorta
The functioning of a loudspeaker depends upon it’s: Shape & Size
Which of the following items is the source of “proteins”: Meat
Carnivore means: An eater of flesh
Which branch of medical science deals with the skin of humans: Dermatology
Malady means: Disease
The most brightest planet is: Venus
The age of Universe is: 13.7 billion years
Who proposed the Theory of Evolution: Charles Darwin
“Fungus” is a Latin word which means: Mushrooms
Dermatology is the study of: Skin
Global warming is believed to have started in the: Post-industrial era
A rainbow is formed when light passes through: A water droplet
The medical doctor who is specialist of eye sight is: Ophthalmologist
The term cosmic is most closely related to: Astronomy
A person who studies rocks and soils is called: Geologist
A narrow piece of land separating two water bodies and connecting two land masses is known as: Isthmus
Which type of energy is produced during a fission reaction in a nuclear reactor: Thermal energy
What is the basic unit of the animal and human body: Cell
Which is the correct sequence of air passage through the respiratory system, during inhalation: Nostrils Pharynx Larynx → Trachea Lungs Alveoli
Which of the following is a unit of length: Meter
Which of the following is an example of a magnetic material: Iron
ECG is used for the diagnosis of the ailment of the: Heart
Who invented the Steam Engine: James Watt
If a large number of people suffer from a disease at one place and time, it is known as: Epidemic
When white light is passed through a prism, it splits into ______ colors: 7
Air is the example of a/an: Mixture
The most abundant metal in the Earth’s crust is: Aluminum
Water percentage in plasma is: 90%
The transfer of thermal energy from one substance to another through which requires no physical medium: Radiation
Which gas in Chlorofluorocarbons damage the ozone layer most: Chlorine
Iron is an essential mineral which is needed for our body for the production of: hemoglobin
Bronchitis is a disease related to: Respiratory tract
Which type of vitamin is used for human body through sun: Vitamin D
Copper, gold, and silver are named: Coinage metals
Vocal cords in females are generally: Shorter and thinner
The hardest thing present in human body is: Dental enemal
What causes bird flu: Virus, often H5N1
There are almost _______ of nephrons in each kidney in human body: 1000000
Which side of the hemisphere is getting warmer faster: Northern Hemisphere
Radio waves frequency is measured in: Hertz
Which Basic Unit is used in Fabrication of Bodies And transistors: Silicon
Who gave the theory of Evolution By Natural Selection: Charles Darwin
Which of the following is responsible for largest amount of oxygen on earth: Algae
The Central Nervous System (CNS) is composed of: Brain, Spinal Cord and Nerves
Solar Eclipse occurs when: The moon comes between earth and sun
What is the unit of force: Newton
Demographic transition model was given by: Warren Thompson
Which of the following is the most elastic material: Steel
Which gas is commonly used in balloons and airships: Helium
Who invented Telephone: A.G.Bell
Stethoscope was invented by: Rene Laennec
The lightest element is: Hydrogen
When light enters one spectrum and transfers to different places, it is called: Dispersion
When the ovary releases an ovum, it is called: Ovulation
Which projections use the source light: Conical and cylindrical
Which of the following is the cheapest and environmentally friendly source of electricity: Hydroelectric Power
What is the capacity of Lungs: 6 liters
How many lenses does a pinhole camera use: No lens
The study of life is called: Biology
The volume of an atom is calculated by using: Atomic radius and formula for volume of a sphere
A process of breaking down large hydrocarbons into smaller molecules using heat is called: Thermal cracking
Which mineral is essential for building bones and teeth, muscle functioning and blood clotting: Calcium
Ozone is a gas found in the layer: Stratosphere
The SI unit of electric current is: Ampere
Who invented the soda water: Joseph Priestley
A sound is which type of: Mechanical wave
Albert Einstein is best known for his: Theory of Relativity
The most malleable metal is: Gold
The gas common known as Laughing gas is: Nitrous Oxide
Which part of the Ear belongs to hearing: Cochlea
Which gas is used in welding: Acetylene
Nearest planet to the sun is: Mercury
The largest planet of the solar system is: Jupiter
Which of the following components is rich in fat: Butter
Which type of inheritance is not supported by Java: Multiple inheritance
CNG burns less efficiency than which gas: Propane
Trachoma is a disease of: Eye
Radio, television and cell phones send information even in space agency through: Electromagnetic waves signals
Sports drinks contain less than 6% carbohydrates are called: Hypotonic drinks
The principle by which blotting paper absorbs water is: Capillary action
Proton and nuclei move with the speed of light in space is called as: Cosmic rays
Printing Press invented by: Johan Gutenberg
IMPORTANT: Read PPSC Past Papers and practice with Everyday Science MCQs Quizzes for effective test preparation.
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Also Read: PPSC Everyday Science and PPSC Basic Math Solved MCQs, designed to give you a competitive edge in PPSC test preparation.
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