Everyday Science MCQs

Page No. 30

There is a hole in the Ozone Layer at__________?


aSouth Pole


bNorth Pole


cBoth A and B


dNone of these


View Answer South Pole

Wisdom teeth normally grow between the age of___________?


a34-40


b17-30


c35-55


d10-17


View Answer 17-30

Chronometer is invented by________?


aRobert Fulton


bNikola Tesla


cMartin Cooper


dJohn Harrison


View Answer John Harrison

Which is the purest form of water?


aRain water


bHeavy water


cTap water


dNone of these


View Answer Rain water

Animals use nitrogen in the form of_________?


aNitrogen


bNitrates


cNitrites


dNone of the above


View Answer Nitrites

Dinosaurs and many other species were extinct about ________ years ago.


a55 million


b66 million


c75 million


d85 million


View Answer 66 million

The biggest planet in solar system is ______ and having _____ moons?


aUranus , Sixteen


bJupiter, Seventy-nine


cSaturn, Sixteen


dUranus, two


View Answer Jupiter, Seventy-nine

Edward Genner discovered ‘vaccine’ in___________?


a1796


b1978


c1686


d1933


View Answer 1796

speed of sound in dry air at 20 °C is___________?


a353 m/s


b345 m/s


c343 m/s


dNone of the above


View Answer 343 m/s

Sound travels about ___________times faster in water than in air.


a2


b3


c4


d5


View Answer 4

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