Which of the following gases has an important role in maintaining atmospheric temperature...? Mcqs

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Which of the following gases has an important role in maintaining atmospheric temperature...?

(A) Nitrogen
(B) Argon

(C) Oxygen
(D) Carbon dioxide

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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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The Planet with shortest daytime is...?

(A) Saturn
(B) Jupiter

(C) Neptune
(D) Mars

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Phases of the moon occur because:...?

(A) we can see only that part of the moon which reflects sunlight light towards us
(B) our distance from the moon keeps changing

(C) the shadow of the Earth covers only a part of the moon’s surface
(D) None of these

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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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What is the Richter Scale used to measure...?

(A) Flood
(B) Volcano

(C) Earthquake
(D) Tsunami

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Which instrument is used to measure altitude..?

(A) Audiometer
(B) Altimeter

(C) Barometer
(D) Anemometer

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Which of the following is not a vector quantity:...?

(A) Displacement
(B) Velocity

(C) Speed
(D) Acceleration

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Which star is known as the constant star...?

(A) Sirious
(B) Canopus star

(C) North star
(D) The sun

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The theory about the beginning of the universe by a huge explosion is called...?

(A) Binary
(B) Black Hole

(C) Big Bang
(D) Steady State

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