Everyday Science General Knowledge Questions And Answers | textpound

Everyday Science General Knowledge Questions And Answers 

Everyday Science General Knowledge Questions And Answers

1. The most densest substance on the Earth is?

Osmium

 

 

2. “Coal” is an important fossil fuel. It is formed by the remains of?

plants

 

3. “Quartz” is a mineral composed of ?

Oxygen.and Silicon

 

                                       

4. Which component of the body works as an energy storage device?

 

  Fats

         

5. What divides the Earth into the Northern and the Southern Hemispheres?

 Equator

 

6.   The  chemical formula of ozone is?

O3

7. The most important stimulant in tea leaves is?
Caffeine

8. Who won the Nobel Prize in physics for the discovery of the “Law of photoelectric effect”?

 Albert Einstein

 

 9. For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will

 

increase

 

10. The lifespan of Red Blood Cells is ?

120 days.

 

 

11. The density of water is?

 

1 g/cm3

 

12. Radioactivity was discovered by?

 

Henri Becquerel

13. A device which converts chemical energy into electrical energy is called

 

 battery

14. The Sun’s mass is mainly consist of hydrogen (about 73%). The second main constituent (about 25%) is

 

 helium

 

15.Severe deficiency of Vitamin D results in ?

 

rickets

 

16. The SI unit of charge is?

 

Coulomb

 

17. Long-sight defect could be corrected by using?

Convex Lens 

 

18. Deficiency of Vitamin-A results in ?

Night blindness

 

19. For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will?

Increase

20. Mole is a unit of ?
Amount of substance.

21.Which bacteria is responsible for the formation of curd?
Lactobacillus Acidophillus

22. Which group of animals has heterogametic females?

Domestic fowl

23. kilogram is a unit of?
mass

24.which is the smallest bird on the earth

 Humming Bird

25. Carbon dioxide was discovered by?


Joseph Black




26. Symbol of Iron is?

Fe


27. An ordinary mobile phone communicate by using?

Radio waves





28. Angstrom is unit of which quantity ?

Length

29. Milk contains water?

87%



30. Only planet whose day is longer than its year is_?


Venus



31. A force applied on a body through the string is called?

Tension







32. Which gas is used for artificial ripening of green fruit ?



Ethylene



33. The most important stimulant in tea leaves is



Caffeine



34. Which part of the camera is analogue to the retina in the human eye?

Film

The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere ?

Radiosonde


36. What is the average adult pulse rate?



72-80



37.The species that flower are called ?

Angiosperms








38. A lake starts freezing because of the cold atmosphere. It will first freeze



At the top surface





39. The sun appears red at sunrise and sunset while it appears white at noon, because



Of scattering of light due to dust particles and air molecules







40. An astronaut inside a spacecraft is in a state of weightlessness. This implies that



the astronaut and the space craft are both in a free-falling state







41. An iceberg is floating in sea. How much of its mass will remain above the surface of water?


One tenth


42. Most of the ozone in the atmosphere is concentrated in the



Stratosphere







43. The cow’s milk contains how much amount of water in terms of percentage?



80%







44. T.V. transmission cannot cover a very large area because



The shape of the earth is spherical







45.The Green House Effect is caused by an excess of


 Carbon dioxide


46. Bats can also fly in dark because they are capable of taking the help of ?



Ultrasonic Waves







47. What is ‘Stealth Technology’?

A device which when attached to an aircraft makes it invisible on the radar







48. The primary function of the feathers in birds is to ?



Provide striking surface to the wings for flying







49. The rear view mirror of a motor vehicle is



Convex








50. The biggest species of the cat family is?

Tiger

51. Each day human body breathe in ? 

15,000 to 20,000 liters of air. 

52. Basidiospores are considered to be a major source of ?

Airborne Allergens



53. The SI unit of “pressure” is ?.



Pascal



54. Diamond is a very expensive ornament. It is composed of a single element ?



Carbon




55. Pollutants that are introduced into the environment by human activity are called as ?


Qualitative pollutants





56. Television signals are converted into light signals by?

Photo diode




57. What is the name of the central part of the earth

Core 

58.The biggest planet in our solar system is?

Jupiter

59. Kilowatt-hour is a unit of?



Energy



60. Fuel used in a Fast Breeder Reactor is?


Uranium Plutonium Oxide