Refrigerator works on the phenomenon of ________ of heat transfer....? Mcqs

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Refrigerator works on the phenomenon of ________ of heat transfer....?

(A) Conduction
(B) Convection

(C) Radiation
(D) All of these

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Which of the following is nutritional deficiency disease...?

(A) Albinism
(B) Cirrhosis

(C) Rabies
(D) Pellagra

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The most distant human-made object sent into the space is...?

(A) Voyager 1
(B) Pioneer 10

(C) Eris
(D) New Horizon

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1 Coulomb = ___________ e....?

(A) 6×10-19
(B) 6.25×1018

(C) 1.6×1019
(D) 6.25×10-18

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Which of the following is/are unicellular organisms (single-celled)...?

(A) Bacteria
(B) Fungi

(C) Plants
(D) Algae

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The two factors that affect the speed of sound in air are ______...?

(A) Humidity and volume of the air
(B) Temperature and mass of the air

(C) Volume and mass of the air
(D) Temperature and humidity of the air

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The speed of sound in air at sea level is approximately____________...?

(A) 300 meter per second
(B) 320 meter per second

(C) 340 meters per second
(D) 370 meter per second

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Which type of the following chemical reaction is CaO + CO2 → CaCO2:...?

(A) Combination Reaction
(B) Decomposition Reaction

(C) Neutralization Reaction
(D) None

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There is no connection of supernova explosion with___________...?

(A) Cosmic rays
(B) Pulsars

(C) The formation of heavy elements
(D) Quasars

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How does smoking cigarettes impact the red blood cells...?

(A) Decreases their ability to congeal
(B) Decreases their ability to carry oxygen

(C) Decreases their ability to reach their typical life duration
(D) Decreases their ability to cleanse wounds

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