Everyday Science MCQs

Page No. 116

Oasis is associated with___________?


aGlaciers


bDesert


cIslands


dVolcanoes


View Answer Desert

Yeast is used in making bread because it produces____________?


aCarbon dioxide


bSugar


cBacteria


dOxygen


View Answer Carbon dioxide

The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from____________ ?


aIonosphere


bTroposphere


cMesosphere


dStratosphere


View Answer Ionosphere

Ozone layer prevents ______________ radiation from entering the atmosphere?


aInfra-red


bUltraviolet


cX-rays


dGamma rays


View Answer Ultraviolet

Which one of the following is a non-metallic mineral?


aManganese


bMagnesium


cGypsum


dBauxite


View Answer Gypsum

Sedimentary rocks are__________?


aPorous


bHard


cRough


dBrittle


View Answer Porous

A moderator is used in nuclear reactor in order to ?


aAccelerate the neutrons


bSlow down the speed of the neutrons


cIncrease the number of elections


dDecrease the number of electrons



Which of the following atmospheric layers help in radio communication?


aExosphere


bIonosphere


cTroposphere


dStratosphere


View Answer Ionosphere

Monsoon is caused by____________________?


aSeasonal reversal of winds


bRevolution of earth


cMovement of clouds


dRise in temperature



Fuel used in a Fast Breeder Reactor is _____________?


aUranium Oxide


bUranium Plutonium carbide


cUranium Plutonium Oxide


dUranium thorium Oxide



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