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Everyday Science Questions & Answers Section 161

Ques No.1: For being able to see three-dimensional pictures we have to use An _________.

Ans: Epidiascope

Ques No.2: ________ is a disease of eye.

Ans: Cataract

Ques No.3: Materials for rain proof coats and tents owe their water proof properties to __________.

Ans: Surface Tension

Ques No.4: The temperature of the semi-molten rocks about 10 km below the surface is __________.

Ans: 200 degree Centigrade

Ques No.5: The absorption of ink by blotting paper involves ___________ phenomenon.

Ans: Capillary Action

Ques No.6: The large plates of solar panels are painted _______.

Ans: Black

Ques No.7: The swing of a spinning cricket ball in the air can be explained on the basis of _______.

Ans: Bemoulli‘s Theorem

Ques No.8: The solar energy falling on the atmosphere of earth is almost _________.

Ans: 1.4 kilowatt per square meter

Ques No.9: ___________ dissolved in water help in cleaning clothes by reducing the surface tension of water.

Ans: Detergents

Ques No.10: _________ is used in the fission process.

Ans: Uranium-235

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