Sound travel faster in solid as compare to gases because of ______...? Mcqs

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Sound travel faster in solid as compare to gases because of ______...?

(A) Gas molecules are packed loosely
(B) Sound does not travel faster through a solid than a gas

(C) Solid molecules are packed tightly
(D) Gas molecules move faster

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The chemical formula for methane gas is...?

(A) CH8
(B) CH6

(C) CH4
(D) CH2

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Girl is riding a bicycle. She covers a distance of 150 meters is 5 seconds. The cycling speed of a girl is...?

(A) 20 m/s
(B) 30 m/s

(C) 40 m/s
(D) 50 m/s

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“Ornithology” is the study of_____________...?

(A) Birds
(B) Insects

(C) Sea Plants
(D) Sea Animals

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How many chambers are in the human heart ...?

(A) 02
(B) 03

(C) 04
(D) 05

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Role of biotechnology in the production of food based on ___________...?

(A) Decomposition
(B) Respiration

(C) Digestion
(D) Fermentation

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Amoeba and paramecium is made up of one cell that’s why it is called unicellular, while plants and animals are made up many cells so we call them...?

(A) Unicellular
(B) Multicellular

(C) Inter cellular
(D) Intra cellular

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Cotyledons are very Important because they ________...?

(A) Store Food
(B) Store Water

(C) Store Air
(D) None of these

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Which of the following is true of bile salts...?

(A) They are enzymes
(B) They are manufactured by the pancreas

(C) They emulsify fats in the duodenum
(D) They increase the efficiency of pepsin action

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Which blood cells are called ‘Soldiers’ of the body...?

(A) White Blood Cells
(B) Platelets

(C) Red Blood Cells
(D) None of the above

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