Our atmosphere consists of___________ Oxygen approximately...? Mcqs

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Our atmosphere consists of___________ Oxygen approximately...?

(A) 11% Oxygen approximately
(B) 21% Oxygen approximately

(C) 31% Oxygen approximately
(D) None of these

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Light travelling in a straight line ______ when it strikes the surface of another medium....?

(A) Reflects
(B) Refracts

(C) Diffracts
(D) Absorbs

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CNG stands for...?

(A) Converted Natural Gas
(B) Conduced Natural Gas

(C) Conducted Natural Gas
(D) Compressed Natural Gas

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Optic fibers are mainly used for which of the following:...?

(A) Communication
(B) Weaving

(C) Food indudtry
(D) None of these

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The variety of coal in which the deposit contains recognizable traces of the original plant material is____________...?

(A) bitumen
(B) anthracite

(C) lignite
(D) peat

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Atmospheric pressure decreases with the _______...?

(A) Increase in longitude
(B) Decrease in altitude

(C) Increase in altitude
(D) Increase in latitude

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In the human body, the lungs remove which gas from the blood...?

(A) Nitrogen
(B) Hydrogen

(C) Carbon Dioxide
(D) Argon

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Which simple machines is used in raising the flag...?

(A) Scissors
(B) Pliers

(C) Pulley
(D) Wheels

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Carbon dioxide dissolution in water, actually represents solute and solvent combination of _____...?

(A) Liquid-liquid solution
(B) Solid-liquid solution

(C) Gas-liquid solution
(D) Solid-solid solution

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Places where the temperature of air is below freezing point of the water, the precipitation will be in the form of __________ ...?

(A) Snow
(B) Lightning

(C) Hailstorms
(D) Thunders

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