What type of a mirror is used in anti-shop-lifting-devices...? Mcqs

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What type of a mirror is used in anti-shop-lifting-devices...?

(A) Convex mirror
(B) Concave mirror

(C) Plane mirror
(D) Both (b) and (c)

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Growth is provided by________...?

(A) Protein
(B) Minerals

(C) Vitamins
(D) Carbohydrates

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________ is an instrument used in determining the directions of movement of clouds....?

(A) Nephoscope
(B) Stethoscope

(C) Metroscope
(D) None of the above

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Selenology is the study of __________...?

(A) Stars
(B) Galaxy

(C) Moon
(D) Planets.

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A shooting star is _________...?

(A) Sun
(B) A comet

(C) A meteor
(D) An steroid

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Why does cytosine not form a bond with adenine...?

(A) Cytosine is unable to form hydrogen bonds with adenine.
(B) Adenine and cytosine have incompatible hydrogen bond donors and acceptors.

(C) Cytosine only pairs with thymine due to their complementary structures.
(D) Adenine is a pyrimidine and cannot bond with cytosine.

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_________ is anything that takes up space and has mass....?

(A) Matter
(B) Gravity

(C) Energy
(D) Plasma

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Who invented bifocal eyeglasses...?

(A) Ibn-e-Haitem
(B) Benjamin Franklin

(C) Archemedes
(D) None

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In mercury thermometer, mercury of bulb expands and rises in the tube which has linear scale...?

(A) -20°F - 100°F
(B) 35°F - 105°F

(C) 100°F - 120°F
(D) 94°F - 108°F

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Places experiencing equal impact of an earthquake are called_________________...?

(A) Seismic lines
(B) Seismic built

(C) Seismic plates
(D) Seismic waves

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