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

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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 small segment of DNA which has information to code one protein is called ______...?

(A) Nucleotide
(B) Polynucleotide

(C) Gene
(D) Exon

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Which Planet is also known as Winter Planet...?

(A) Mercury
(B) Earth

(C) Jupiter
(D) Uranus

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All of these are benefits of bacteria except ______...?

(A) Decomposition
(B) Oxygen Production

(C) Nitrogen Fixation
(D) None of these

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The average kinetic energy of the molecules of a body determines...?

(A) heat
(B) temperature

(C) internal energy
(D) none

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The process of separating a soluble solid from a solution is known as...?

(A) Distillation
(B) Filtration

(C) Sublimation
(D) Crystallization

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Percentage of water in a tomato is__________...?

(A) 94%
(B) 90%

(C) 47%
(D) None of these

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It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the_______...?

(A) pitch
(B) Frequency

(C) Time period
(D) Quality

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Carbon,Diamond and Graphite are together called:___________...?

(A) Allotrope
(B) Isomers

(C) Isomorphs
(D) Isotopes

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A method of removing suspended sand particles and insoluble physical impurities from water is known as...?

(A) Sedimentation
(B) Filtration

(C) Distillation
(D) Chlorination

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