The part of an eye acting as a aperture of camera is _____...? Mcqs

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The part of an eye acting as a aperture of camera is _____...?

(A) Iris
(B) Pupil

(C) Cornea
(D) Retina

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Insulin drug was discovered by____________...?

(A) Charles Herbert Best
(B) Prof John James Rickard Macleod

(C) Sir Frederick Grant Banting
(D) Leonard Thompson

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Meteorology is the study of...?

(A) Seasons
(B) Atmosphere

(C) Air and sounds
(D) Winds and clouds

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The Time taken for sunlight to reach the Earth is___________...?

(A) 700 sec
(B) 8hrs 20 mins

(C) 8 mins 20 sec
(D) 8 mins

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A formula that indicates actual number and type of atoms in a molecule is called...?

(A) Chemical formula
(B) Empirical formula

(C) Molecular formula
(D) Formula mass

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Midnight "Sun" is a phenomena of___ circle....?

(A) The entire Arctic circle
(B) The entire Atlantic circle

(C) Titled position of earth on its axis
(D) The entire Pacific

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The average heartbeat per minute in a normal man is _________...?

(A) 50
(B) 70

(C) 80
(D) 100

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A simple machine that uses grooved wheels and a rope to raise, lower or move a load is known as...?

(A) Pulley
(B) Lever

(C) Incline Plane
(D) Wedge

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The amount of solid waste or concentration of gases other than oxygen increase in atmosphere is called...?

(A) Air pollution
(B) Ozone depletion

(C) Acid rain
(D) Greenhouse effect

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The prefix ‘hept’ stands for the ____ carbon atoms....?

(A) 2
(B) 5

(C) 7
(D) 9

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