Everyday Science MCQs

Page No. 66

How many meters are in one mile?


a1409.34


b1509.34


c1609.34


dNone of the above


View Answer 1609.34

Montreal Protocol 1987 was__________?


aTreaty among nations to reduce nuclear arsenals


bClimate control treaty


cTreaty to protect ozone layer


dTrade policy about tarrifs



Disolved oxygen (DO) in water should be?


a400 to 800 ppm


b4000 to 8000 ppm


c0.4 to 0.5 ppm


d4 to 5 ppm


View Answer 4 to 5 ppm

Why normal rain is slightly acidic?


adue to presence of dust in air


bcarbon dioxide and water in clouds react to form carbonic acid


cOzone depletion


dAll of the above



The yellow colour in photochemical smog is due to the presence of____________?


aSulfur dioxide


bCarbon dioxide


cNitrogen dioxide


dCFCs


View Answer Nitrogen dioxide

Human beings use _______ liters of pure oxygen per day.


a550


b525


c1,050


d10,000


View Answer 550

In 2013, Planck measured the age of the universe at ___________?


a13.82 billion years


b4.53 billion years


c4.6 billion years


d4.63 billion years


View Answer 13.82 billion years

Jupiter has ________ known moons.


a62


b73


c79


d53


View Answer 79

The study of heavenly bodies is known as_________?


aAstrology


bAstronauts


cAstronomy


dAstrophysics


View Answer Astronomy

kilohertz (kHz) is a unit which measures?


aPower used by a current of one ampere


bElectromagnetic radio wave frequencies


cVoltage


dElectric resistance



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