A loudspeaker changes _________ energy into sound energy....? Mcqs

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A loudspeaker changes _________ energy into sound energy....?

(A) Chemical
(B) Electrical

(C) Light
(D) Kinetic

Latest MCQs

A part of maize seed that contains stored food is called...?

(A) Embryo
(B) Endosperm

(C) Seed coat
(D) Cotyledon

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Current stage of star ‘Sun’ is___________...?

(A) white dwarf
(B) red giant

(C) yellow dwarf
(D) orange dwarf

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Which led to the diversification of life...?

(A) Mesozoic Era
(B) Paleozoic Era

(C) Cenozoic Era
(D) Precambrian Time

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Which of the following mixture of gases is required in gas welding...?

(A) Oxygen and ethylene
(B) Oxygen and hydrogen

(C) Acetylene and oxygen
(D) Acetylene and hydrogen

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About ______ of the body weight of a mammal is water....?

(A) 70%
(B) 75%

(C) 80%
(D) 90%

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Chemical used to kill rats and mice are ...?

(A) Insecticides
(B) Rodenticides

(C) Fungicides
(D) Herbicides

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What happens when oil is burnt...?

(A) Carbon dioxide and energy will be released
(B) Carbon monoxide and water will be released

(C) Oxygen and carbon will be released
(D) Nitrogen and hydrogen will be released

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Which gas can turn lime water milky...?

(A) O2
(B) NO2

(C) CO2
(D) N2

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Which part of the body is attacked by “Gingivitis” disease...?

(A) Eyes
(B) Nails

(C) Gums
(D) Nostrils

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