Carbon dioxide was discovered by_______...? Mcqs

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Carbon dioxide was discovered by_______...?

(A) Niels Bohr
(B) Amedeo Avogadro

(C) Joseph Black
(D) None of Above

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The Moon is illuminated because it ________ the light from the Sun....?

(A) Absorbs
(B) Reflects

(C) Deflects
(D) Refracts

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Which one of the following is also known as shooting stars...?

(A) Asteroids
(B) Comets

(C) Black Holes
(D) Meteoroids

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The rashes and athlete's foot are caused by which infection...?

(A) Bacterial
(B) Fungal

(C) Viral
(D) None of these

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_________ is psychological study of values and moral principles...?

(A) Axiology
(B) Sociology

(C) Idiology
(D) Criminology

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Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere...?

(A) Carbon dioxide
(B) Chlorofluorocarbons

(C) Nitrogen oxides
(D) Methane

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Matter exists in______ states....?

(A) One
(B) Three

(C) Five
(D) None of these

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If output voltage is greater than input voltage, then transformer is :...?

(A) Step up
(B) Step down

(C) Faulty
(D) None of These

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Relaxation of heart muscles and allowing the chambers to fill with blood called...?

(A) Diastole
(B) Systole

(C) Cardiac arrest
(D) Heart failure

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An Average Hummingbird’s heart rate per minute is __________....?

(A) 500 times
(B) 1000 times

(C) more than 1000 times
(D) more than 1200 times

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