CSS[FPSC-U.S. Civil Service Commission]-USA MCQ Quiz Hub

[USA] Current Affairs 2021 Set 9

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1. Quartz is a crystalline mineral composed of Silicon and _____ atoms.




2. The bodyguard of the Earth is ________ that save the Earth from many Comets and Asteroids.




3. 1 light year =




4. The planets visible to us without using a telescope are




5. According to Big Bang Theory, the Universe began about ________ billion years ago.




6. Biosensor is used to measure?




7. Einsteins famous equation which states that mass and energy are interchangeable is




8. The SI unit of electric current is




9. The principal constituent of the atmosphere of the Earth is




10. What is Dry Ice?




11. Which are the three primary colours?




12. Digestion of food is completed in the




13. Carrot is good source of vitamin




14. For proper formation of teeth, __________ is essential.




15. Deficiency of __________ causes loss of appetite and poor growth.




16. Meteorology is the study of?




17. Diamond is an allotropic form of




18. The SI unit of Heat is




19. The good sources of Vitamin-A are




20. The good sources of Vitamin-B Complex are




21. The good sources of Vitamin-C are




22. The good sources of iodine are




23. The gas, commonly known as laughing gas, is




24. The source of oxygen in photosynthesis is




25. The instrument used to measure wind speed is




26. The natural fats and oils are composed of




27. The energy value of food is measured in




28. Wind energy is the __________ energy.




29. Who is considered the founder of meteorology?




30. Water covers __________ of the Earths surface.




31. In general, wind speed of 105 -137 km/h cause




32. Acid rain is mainly caused by emissions of __________ in the atmosphere.




33. About 50% of the Earths crust, including the waters on the Earth and atmosphere, is




34. The fourth state of matter is




35. The device used to convert Alternate Current into Direct Current is called




36. In night, when photosynthesis is stopped, plants




37. During photosynthesis, plants




38. __________ are called the powerhouses of the cell.




39. Mitochondria contain their own supply of




40. The first chemical explosive, Gunpowder, is a mixture of




41. The number of oscillations per second is called the




42. Sound waves from a loudspeaker are caused by




43. The guitar has __________ strings.




44. The device used to measure movements of the heart is




45. The unit used to measure Pressure is




46. There are __________ methods of heat transfer.




47. Which from the following is NOT a method of heat transfer?




48. If we heat one end of metallic rod, the other end gets hot. The method of heat transfer is




49. A person seated in front of a fire receives heat by




50. The unit used to measure magnetic flux is