Everyday Science Oneliner MCQS 9

  • Mitochondria is called the power house of the cell.
  • Persons with AB+ blood group are considered to be universal recipient.
  • Study of life in outer space is known as Exobiology.
  • The name of the common mineral salt present in sweat is Sodium Chloride.
  • Sensitive layer of the eye is Retina.
  • Laughing gas as the composition of Nitrogen and Oxygen. 
  • Dr. Abdus Salam of Pakistan was one of the contributors of the unification of Electromagnetic force and weak nuclear force.
  • CAT triplet in DNA codes for valine.
  • The chance of diabetic baby born to parents both heterozygous normal is 'A
  • Inheritance of acquired characters is not an art of Darwinism.
  • Role of biotechnology in the production of food is based on Fermentation.
  • Founder of modern astronomy was Nicolas Copernicus.
  • The instrument which measures very high temperature is Pyrometer.
  • The science which deals with study of manners and customs of people is Ethics.
  • Dry ice is Solid Carbon Dioxide.
  • Chemical name of vinegar is Dilute Acetic Acid.
  • Deficiency of Pyridoxine decreases haemoglobin production.
  • Orbital period of the planet Mercury around the sun is 88 days.
  • The most splendid and the most magnificent constellation on the sky is Orion.
  • “Black holes” refer to Collapsing objects of high density.
  • Eugenics is the study of altering human beings by changing their genetic components.
  • The position of earth in its orbit when it is at its greatest distance from the sun causing northern summer is called Aphelion.
  • Ionosphere layer make the radio transmission possible.
  • Television signals are converted into light signals by Transistor.
  • Most of Asteroids lie in asteroid belt between the orbit of Mars and Jupiter.
  • The number of spark plugs needed in a diesel engine is 0.
  • The half-life of a radioactive element is 8 days. It takes 8 days to reduce it from 10mg to 5 mg.
  • The term “Blue Shift” is used to indicate Doppler Effect in which an object appears bluer when it is moving towards the observer or observer is moving toward the object.
  • Kilowatt-hour is a unit of Power.
  • Fuel used in a Fast Breeder Reactor is Uranium Plutonium Oxide.
  • Monsoon is caused by Revolution of earth.
  • Atmospheric layer ionosphere helps in radio communication.
  • A moderator is used in nuclear reactor in order to slow down the speed of the neutrons.
  • Sedimentary rocks are Porous.
  • Gypsum is a non-metallic mineral.
  • Ozone layer prevents the ultraviolet radiation from entering the atmosphere.
  • The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from Ionosphere.
  • Oasis is associated with Desert.
  • Quartz crystal in quartz watches work on the principle called Piezo-electric effect.
  • The fruits with seed, like banana, are called Parthenocarpic fruits.
  • Animal which captures and readily kills living animals for tis food is called Predator.
  • In a railway track, two rails are joined end in end with a gap in between them to avoid accidents due to expansion.
  • Al-Qanoon is the famous book of Ibn-e-Sina in which human physiology and medicine are discussed.
  • Copper can be converted into gold by Artificial Radioactivity.
  • In winter an iron pipe feel colder than a wooden window. This is because wood is non-conductor.
  • The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least 56 ft.
  • It is possible to recognize a person in the dark by simply hearing hiss unique voice. It is because of the Pitch.
  • When a ray of sunlight enters a dark room, its straight path becomes visible because of dust particles hanging in the air. It is because light is Transparent.
  • The principle used in radar is the same as that of sonar. In radar we use radio waves; whereas in sonar we use Ultrasonic.
  • Parsec is a unit of distance.


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