The blue colour of the clear sky is due to...? Mcqs

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The blue colour of the clear sky is due to...?

(A) Refraction of light
(B) Reflection of light

(C) Diffraction of light
(D) scattering of light

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Which planet takes the longest time to go once around the Sun...?

(A) Neptune
(B) Mars

(C) Jupiter
(D) Earth

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The planet nearest to the sun is:...?

(A) Jupiter
(B) Saturn

(C) Mercury
(D) Earth

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Minor object in irregular shapes orbiting the sun are called...?

(A) Vessel
(B) Asteroid

(C) Meteors
(D) Comet

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Capacitor is used for:...?

(A) Store electrical energy
(B) Vary the resistance

(C) Store magnetic energy
(D) Dissipate energy

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The layer of atmosphere in which we live is called...?

(A) Stratophere
(B) Troposphere

(C) Lithosphere
(D) lonosphere

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Which gas present in the Earth's atmosphere can absorb solar ultraviolet radiation...?

(A) Oxygen
(B) Ozone

(C) Carbon dioxide
(D) Nitrogen

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Day and night changes due to...?

(A) Earth' revolution
(B) Earth's rotation accompanied with its revolution

(C) Earth's rotation around its axis
(D) None of these

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Sun's diameter is...?

(A) 3 million Km
(B) 2.5 million Km

(C) 1.4 million Km
(D) 1.8 million Km

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Water drops are spherical because of...?

(A) Air pressure
(B) Density

(C) Viscosity
(D) Surface tension

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