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

[USA] Current Affairs 2021 Set 10

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1. Battery was invented by




2. The most abundant element in the earths crust is oxygen. The second most abundant element in the earths crust is




3. The nearest planet to the Sun is




4. Bronze is an alloy of




5. Molecules with identical molecular formulae but with different structural formulae are called




6. One way of transfer of heat energy is convection which occurs in




7. Which from the following is incompressible?




8. The key factor in determining the weather is the quantity of ________ in the atmosphere




9. The entropy of the universe is




10. Which from the following methods of heat transfer can take place in a vacuum?




11. Neutrons were discovered by




12. Mass Spectrograph was invented by




13. Nucleus was discovered by




14. Which is the process of science?




15. Salty water can be made pure by the method of




16. The unit of efficiency is




17. Which from the following is NOT a stored energy?




18. Energy can be converted from one form to another, but all energy ends up as




19. A battery converts ________ into electrical energy.




20. Which from the following is NOT a renewable energy resource?




21. Which from the following is NOT a non-renewable energy resource?




22. Current is the flow of




23. The unit of current is




24. To prevent electric shocks, a/an ________ is placed in the circuit.




25. Electrons were discovered by




26. When molten rock cools and solidifies, the ________ are formed.




27. Molten rock below the surface of the Earth is called?




28. Molten rock above the surface of the Earth is called?




29. The metal which is liquid at room temperature is?




30. Between the melting point and boiling point of a substance, the substance is a?




31. The boiling point of alcohol is




32. The visible cloud of dust and gas in space is called?




33. he average salinity of the Earths oceans in 1 kilogram of sea water is about ________ grams of salt.




34. The most abundant substance that constitutes the mass of the Earth is?




35. he Earths atmosphere is divided into ________ main layers.




36. Rocks which are formed by high temperature and pressure on existing rocks over a period of time are called ________ rocks.




37. Marble and slate are examples of




38. Sandstone and limestone are examples of




39. Absolute zero, which is the lower limit of the thermodynamic temperature scale, is equivalent to ________ on the Celsius scale.




40. The diameter of the Earths equator is larger than the pole-to-pole diameter by




41. The Tectonic Plates of the Earth lies in




42. There are ________ major tectonic plates.




43. The fresh water on the Earth is ________ of the total water.




44. The Ozone Layer lies in the




45. The Earths atmosphere is divided into ________ layers.




46. Which type of rock may contain fossils?




47. The mass is highly concentrated form of




48. The whole Earth can be covered by ________ geo-stationary satellites.




49. The ozone layer is at height of ________ kilometers from the surface of the Earth.




50. The ozone layer was discovered by