Top Everyday Science questions answers from basic to advance for all level classes and competitive exams test preparation.
Everyday Science Questions Answers
The source of purest water in nature? Rain
About 50% of the Earth’s crust including the waters on the earth and atmosphere is? Oxygen
What is the formula for heavy water? D2O
Which area in a lake mainly nourished by detritus? Profundal Zone
Which Vitamin is necessary for vision in dim light? Vitamin A
Russia launched its space station into space in 1986, which was? Mir
Bodies which usually fall from the sky on the Earth are called? Meteors
Nearest star to the sun is: Proxima Centauri
Charon is the natural satellite of: Pluto
The world’s first test tube baby was born in which country: Britain
The material used in the fabrication of transistor is: Silicon
The main constituent of Vinegar is: Acetic acid
Vermicompost is a/an: Organic bio-fertilizer
For which Diode is used: Purification
Which organic compound is used to remove stains of iron compounds? Oxalic acid
In a rechargeable cell, what kind of energy is stored within the cell; Chemical energy
Which colour of light shows maximum deviation when fast through a prism? Violet
No of CO2 are present in 220 mg: 0.005 mole
Ice looks white because: It reflects Lights
The Process which involves both solid and liquid phases is called: Melting
What is the study of the structure and behavior of the universe at a very small scale? Quantum Mechanics
What is the study of the structure and properties of materials? Material Science
Which atomic reactor is used for studies of uranium of heavy water lattice? Zerlina
The split ring in motion is called: Commutator
If you have light of 5500 Angstroms, What color is it: Yellow-Green
What Greek letter is used to denote frequency? Nu
The most predominant gases in the Sun? Hydrogen
“Deep Blue Black Box” term is connected with: Aircraft industry
Non-metallic mineral? Gypsum
Which of the planet moves fastest around the Sun? Mercury
Which of the planet moves slowest around the Sun? Venus
Dinosaur was: Reptile
Process by which plants prepare their food is called: Photosynthesis
‘Cryogenics’ is a science dealing with: Low temperature
Bleaching powder is used in drinking water as a: Disinfectant
The highest volume of gases in lower atmosphere is comprised of: Nitrogen
Planck’s constant has the dimension of: Angular momentum
Currant is a : Fruit
In Human being blood does not clot due to the presence of: Heparin
Another name of Vitamin C is: Ascorbic Acid
Carbon Dioxide ____ the temperature of our atmosphere: Increase
Lack of ___ causes diabetes: Insulin
Laws of electrolysis was given by: Faraday
The various distribution circuits are connected in: Parallel
The wire of an electric lamp has a: High resistance and a high melting point
His theory, simplified, was that the electrons in the atom move in precisely determined orbits: Bohr
He said all matter in motion has a wavelike nature: de Broglie
Unlike rodents, the rabbit has how many incisor teeth: Four
Human mouth produces ___ pints of Saliva a day: 2-3
XXY individual in Drosophila (fruit fly) is: Male
What is the position of the Earth when it is at the closest distance from the sun? Perihelion
We live in which of the galaxy? Milky Way
Snow-coated Mountains are found in which of the Planet? Pluto
Bile is stored in human beings in the: Gall bladder
What is mixed farming? Growing several crops and rearing animals
Earthworm is called farmer’s friend because: It makes soil porous
Fleming’s right hand rule is used to find the direction of the: Induced current
A person is hurt on kicking a stone due to: Reaction
Antacids are found in drugs that give relief to: Stomach ache
Which of the liquids has the least density? Petrol
The sharpness of a television is termed as its: Resolution
Study of Reptiles is called: Herpetology
Study of Snakes is called: Ophiology
Science concerned with improving the quality of human offspring is called: Eugenics
Total percentage of Oxygen in Air is: 21%
Study of Bones is called: Osteology
Focusing in a camera is carried out by varying: The distance of the lens from the film
What is the colour of red rose in green light? Black
Ludington, Michigan has the biggest ___ storage system in the world; Pumped Hydroelectric
An artificial earth satellite is said to be in geostationary orbit when: It remains stationary in relation to the earth
What light source is used for most color analysis instruments? Xenon
M types have the lowest energy levels? Microwave
EM types have the highest energy levels? X-rays
What device makes use of EM radiation? RADAR
Sibling species are produced as a result of; Allopatric Speciation
Fertilizers contains a high percentage of nitrogen? Urea
When the source is moving towards the observer at rest the apparent frequency will: Increased
Bats navigate and find food by: Eco-location
How many satellites are present in Jupiter: 79
The constellation of seven bright stars is known as: The great Bear
The most abundant in chloroplast? Rubisco
The carrying capacity of blood is increased by the presence of hemoglobin by how many times: 70 Times
Which is the responsible for the stimulating effect of tea? Alkaloid
Terrace farming is done: on the slope of hills
Faulting owes origin to: Tensional forces
Vitamin B exists in: Seeds
Curie it is the temperature at which: A metal loses magnetic property
What happens when a chemical bond is formed? Energy is always absorbed
When a bar magnet is cut into two equal halves, the pole strength of each piece: Remains the same
Rectified Spirit is: 95% Ethyl alcohol
Purity of a metal can be determined by: Archimedes Principal
The substance in human body which fights disease is: Anti-Bodies
1 Cubic foot per second unit of water management is equal to : 7,4805 gallons
Cholera disease occurs due to contaminated: Water
Study of Motion is called: Mechanics
Study of forces and their effects on motion is called: Dynamics
Study of Gases in motion/ Motion of air is called: Aerodynamics
A gradual rise in a barometer height indicates: Approach of fair weather
Which is the densest planet of our solar system? Earth
Which habit may cause heart diseases? Smoking
One Kilometer is equal to: 1000 m
What type of EM radiation gives people tans? Ultraviolet
What range of electromagnetic radiation is used to cook food in special ovens? Microwave
What is the range of frequencies in which AM radio operates? Microwave
Mirrors is most suitable for using as a reflector in car headlights? Parabolic mirror
If the stars are moving away from the Earth show a: Redshift
If the stars are moving towards the earth show a: Blueshift
Doppler affect can be used to calculate the speeds of: Distant stars
Which acid is produced in our stomach to digest food? Hydrochloric Acid
There is a well developed system of rings around it. This statement is about; Saturn
Which is the brightest star in the night sky? Sirius
ht is more important for photosynthesis: Greenlight
Which blood group is rare in the human body? AB-
Lens are useful in microscope? Convex lens
Lightning is caused due to: Electric discharge
The plastic material commonly used for making gear wheels is: Nylons
Which is used to iodize common salt? Potassium iodate
Heating of ore below its melting point in the absence of air is known as: Calcination
The device used to convert solar energy into electricity is: Photovoltaic Cell
A person of ___ blood group is called as universal recipient: AB+
___ has its own light? Star
Milk contains the fat-soluble vitamins A,D,E and: Vitamin K
Study of Gases that are not in motion is called: Aerostatics
Study of Grasses is called: Agrostology
Study of Bees is called: Melittology
Water is also called a Universal: Solvent
The term “Aqua” is a Latin word means: Water
Any two colors when combine and gave us White is called: Complementary colour
“Yellow + Blue” give us ____ Color: Green
Which Prisms would be suitable for use in a periscope? An isosceles right angled prism
What do you get when you add all of the additive colors together? White
A red tomato appears to be which under blue light: Black
In Hook’s law, K is the spring constant depending on the: Material of spring
The planet which has longest year is: Neptune
The planet which has shortest year is: Mercury
A light year is equal to: 9.50 million, million km
Which type of vitamin is useful for human body through Sun? Vitamin D
Which gas is used in Refrigerator for cooling? Ammonia
The waves which are used by the TV remote control are: Infrared waves
How much fluids per-day a man should use: 3.7 liters
What is the most commonly used substance in fluorescent tubes? Mercury vapour and argonn
Formation of Ozone hole is maximum over: Antarctica
Saccharin is made up of: Toluene
Which is a natural colloid? Blood
A liquid disturbed by stirring comes to rest due to: Viscosity
In addition to hydrogen, the other abundant element present on the sun’s surface is: Helium
Malaria is a disease caused by: Parasites
Beriberi occurs due to the deficiency of: Vitamin B
Another name of Erythrocytes is: Red Blood Cell
Asthma occurs due to: Air Pollution
Study of Spiders is called: Arachnology
Study of earthquakes is called: Seismology
Study of Ears is called: Seismology
Study of Eyes is called: Ophthalmology
Study of Teaching Method is called: . Pedagogy
Red + Green give us ___ color: Yellow
“Red + Blue + Green” give ___ Color: White
Rainbow is produced by the ____ of light: Dispersion
A dental plate clings to the roof of the mouth because: Force of adhesion increases
An ice ball floats into a water tank, when the ice melts, the water level: Does not change
A hot body will radiate heat most rapidly if its surface is: Black and rough
Hook’s law is defined as: F and X are direct proportional
The restoring force is always directed towards the: Rest position or mean position
The earth revolves around the sun at a speed of: 29 km/sec
What is the rank of the earth in the solar system in terms of size? Fifth
The planet which has longest day is: Venus
The life span of red blood cells in human is: 120 days
_____ Is used to clean the ice from the roads during winter season: Salt
The ____ gas is used to make soda water: Carbon Dioxide
Which metals form an amalgam with other metals? Mercury
Which compound is commonly used as an antiseptic in mouth washes and toothpaste? Sodium chloride
Type metal used in printing press is an alloy of: Lead and antimony
Pitch of Sound depends on: Frequency
Heat stored in water vapour is: Latent heat
The smallest structural and functional unit of nervous system is: Neuron
Which cannot be transplanted? Brain
Study of Rocks is called: Petrology
Study of Heat is called: Thermodynamics
When Iron metal rust it form: Iron Oxide
The big bang theory was presented by: Georges Lemaître
According to big bang theory all Mater was concentrated in one ___ meter: Micro
Ponds looks shallow because of: Refraction
Diffusion of light in atmosphere takes place due to: Dust particles
Which suffers minimum deviation when white light undergoes dispersion? Red
The body oscillates due to a: Restoring force
The heaviest mass revolving round the Sun is: Jupiter
What are ‘Red giants’? Old stars
‘Blue dwarfs’ refer to: Young stars
___ can lift weight about 50 times of its own weight: An Ant
What happens in Oxidation reactions? Electrons are Lost
In electro-refining, the pure metal depicted on: Cathode
Which is not an anesthetic agent in surgical operations? Acetone
Sweat contains water and: Salt
Small bubbles are perfectly spherical because of: Surface tension
The spreading of scent in a room follows the law of: Diffusion
Sound travels fastest in: Steel
Generally, plants take which gas at day time: Carbon Dioxide
Which part of the donated eye is used by the recipient? Cornea
Medicines used to kill weeds are known as: Herbicides
Study of Sound is called: Acoustics
Study of lights is called: Optics
Study of Water is called: Hydrology
__ observe that galaxy are not in stationery: . Edwin Hubble
Building blocks of the universe is called: Galaxies
Clusters of billions of store called: Galaxies
A Fuse is used to prevent: Excess of current
The field in which Einstein won Nobel Prize: Physics
Shooting star is another name for: Meteor
Galaxies are usually classified on the basis of there: Shape
Laser can be used in the field of: Telecommunications
LASER is the potential energy source used to inducing: Fusion reactions
The comet, named after Edmund Halley, reappears after a time of every: 76 years
How many Satellites (Moons) of Saturn Planet: 82
Which planet contains largest quantity of carbon dioxide with 95%? Venus
The Speed of Light in a Vacuum is: 186,282 Miles per Second
While going towards the center of the earth, the weight of a body shall: Decrease
Radiations which is not emitted during radioactivity is: Cathode rays
The compound that has the least value for Octane number is: n-heptane
The wire of flash bulbs is made up of: Mg
Which phenomenon produces the colors in soap bubbles? Interference
A well cut diamond shines brightly because: of total internal reflection
Cylindrical lens are used to correct: Astigmatism
Ultraviolet rays coming from the sun are filtered by: Ozone layer
The type of lens found in the human eye is: Biconvex
Water freeze in cold temperature conditions firstly at: Top Surface
Study of Weather is called: Meteorology
Study of Plants is called: Botany
Study of Animals is called: Zoology
Fuse is connected in ___ in the electric circuit: Series
Fuse work on the ____ of current: Heating effect
Blood is an example of: Suspension
Magnetite is a/an: Neutral magnet
Choose the source of energy which is different from others: Crude oil
In which process, the photon emits to produce laser beam: Induced emission
In LASER principle, a photon produce another photon by the process of: De-excite
Name the first artificial satellite: Sputnik I, of the former Soviet Union
Name the first animal to be sent in space: Laika
When did the space age begin with the launch of the Russian Sputnik? October 4, 1957
Human heart has ___ chambers: 4
The disease that spreads through contact is called as: Contagious
Formula of the Magnetite is: Fe3O4
The degree of dissociation of an electrolyte depends on: Dilution
An example of heterocyclic compound is: Furan
The image formed by a plane mirror is: Virtual
The colour of stars depends on their: Temperature
Which part of the camera is just like to Retina of an eye? Film
Sun is red at sunrise and sunset while white at noon due to: Because of Scattering of Light
Percentage of water in milk: 87%
Study of Birds is called: Ornithology
Study of life in the universe is called: Astrobiology
Study of Universe is called: Cosmology
Gasses necessary for burning and respiration is called: Oxygen
Milk is the type of: Suspension
Plastic is a type of: Polymer
The fuse wire is generally made of: Tin-Lead Alloy
X-rays are useful for which cells: Cancerous cells
Darkening of X-ray film is proportional to the: Radiation exposure
X-Rays can penetrate into a solid matter for: Several centimeters
The energy of characteristic X-rays depends on the: Target material
The first ever artificial satellite was launched by: Russia
Who was the first Saudi (first Muslim also) in space? Sultan Salman Al Saud
Who was the first person in space? Yuri Gagarin
Car batteries use __ that reacts with lead zirconate to generate electricity: Sulfuric acid
Which one is not a vestigial organ of a Human being? Eyelids
Work of Pituitary gland in Human body? Controls several other hormone glands
Sulphuric acid is: Dibasic
The filter over which sewage is sprinkled is called as: Trickling filter
Iodine value is used to estimate: Unsaturation in oil
Shaving mirrors are __ mirror: Convex
Tesla is a unit of magnetic: Field
The phenomenon which causes mirage is: Total internal reflection
The major Ingredient of leather is? Collagen
Glucose syrup is commonly made from: Maize
Bamboo belongs to: A Grass family
Study of Cancer is called: Oncology
Study of teeth is called: Odontology
Study of animal behavior is called: Ethology
A process in which Easter are converted into alcohol and soap are called: Saponification
Ammonium Nitrate (Nh4No3) contain ___ percent of Nitrogen by mass: 35%
Inner shell transition in X-Rays takes place in: Heavy elements
Using spectroscopy the helium was identified in the: Sun
When an electric current passes through atomic gas under reduced pressure, the spectra observed is: Line
Balmer series of hydrogen spectrum were identified by J.J. Balmer in: 1885
Hubble is a (launched in 1990): Space telescope
The planet which revolves very slowly around the sun is: Space telescope
How many planets are present in our galaxy: 8
Sun rises in the east and sets in the west due to the: Rotation of the Earth on its axis
The largest cell in Human Body is: Ovum
The Earth rotates while Sun is: Stationary
Normal Human body temperature 98.6f corresponds to: 37°C
Color of skin is due to: Melanin
What is the composition of the Male Chromosome? XY
Benzene cannot undergo: Elimination reaction
Radioactive elements emit: a, B, y radiations
The manufacture of iron from iron ore involves the process of: Oxidation
The function of sedimentation tank in Sewage treatment is to: Remove suspended solids
If lime water is kept in the air, it turns milky due to presence of: Carbon dioxide
Which types of mirror is used in the head lights of vehicles? Concave mirror
Electric current in a metal wire is due to the flow of: Electrons
Which processes is used for the production of Biodiesel? Transamination
Wood Spirit is known as: Methyl alcohol
A powerful eye irritant present in smog is: Peroxyacetyl nitrate
Electricity is transmitted over long distance because: There is less wastage of energy
____ can help Bats to fly in the dark: Ultrasonic waves
Fibula is a bone found in which parts of the human body: Leg
Which is the most sensitive part of eye? Retina
The air becomes headed by: Radiation
Which is associated with the Doppler effect? Sound
The total energy of revolving electron in an atom: Can never be positive
Lipid-rich component of bacterial cell are: Cell membrane
Taj Mahal is greatly affected due to: Acid rain
The genetic information of bacteria is stored in __in one circular chromosome: DNA
Because penicillin prevents peptidoglycan synthesis, it is more effective on ___ cells: Gram Positive
Study of ideas and issues is called: Philosophy
Study of Human social relationship is called: Sociology
Scientific study of mind and behavior is called; Psychology
Miscible liquids that have different boiling points can be separated by: Distillation
Study of Algae is called: Phycology
Scientific study of genes and heredity is called: Genetics
Microscopic study of tissues and cells is called: Histology
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