X-rays were discovered by __________...? Mcqs

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X-rays were discovered by __________...?

(A) Wilhelm Conrad Roentgen
(B) Thomson

(C) Ernest Rutherford
(D) Bacquerel

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Metal are highly ___________ ...?

(A) Electropositive
(B) Electronegativity

(C) Both of these
(D) Neutral

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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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Comets are often called what...?

(A) Dusty snowballs
(B) Filthy snowballs

(C) Dirty snowballs
(D) Impure snowballs

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The vitamin Folate works together with __________ to produce new red blood cells...?

(A) Vitamin D
(B) Vitamin A

(C) Vitamin B-12
(D) None of the above

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The earlier biotechnologist were _____...?

(A) Biologist
(B) Agriculturist

(C) Genetist
(D) Farmers

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Which take the shape and volume of a container they are placed in...?

(A) Liquids
(B) Gases

(C) Solids
(D) None

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The outermost layer of the sun is called __________...?

(A) Coach
(B) Core

(C) Corona
(D) Comma

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A blood alcohol level above ________ will often result in death:...?

(A) 0.10
(B) 0.20

(C) 0.30
(D) 0.41

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Which among the following lens is used to correct Presbyopia...?

(A) Convex
(B) Concave

(C) Bifocal
(D) Cylindrical

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