Percentage of oxygen in human body is _____...? Mcqs

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Percentage of oxygen in human body is _____...?

(A) 65%
(B) 70%

(C) 10%
(D) 18%

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A nucleotide consists of ____...?

(A) Phosphate
(B) Sugar

(C) Base
(D) All of these

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Ozone layer exist above the earth about ______...?

(A) 35km
(B) 25km

(C) 40km
(D) 30km

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Which of the following factor does not affect the pressure of the gas in a container...?

(A) Temperature
(B) Volume

(C) Density of gas
(D) Container material

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It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________...?

(A) An equal and opposite pressure acts from inside
(B) of the height of a man

(C) of gravity
(D) Earth pulls the man upward

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The atmospheric greenhouse effect is produced mainly by the __________________...?

(A) Absorption and re-emission of visible light by the atmosphere
(B) Absorption and re-emission of ultraviolet radiation by the atmosphere

(C) Absorption and re-emission of infrared radiation by the atmosphere
(D) Absorption and re-emission of visible light by clouds

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Dead red blood corpuscles are stored in____________...?

(A) Liver
(B) Spleen

(C) Kidney
(D) Heart

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Name the famous Pakistani scientist who worked under the supervision of Albert Einstein...?

(A) Dr Abdul Qadeer
(B) Riazuddin Siddiqui

(C) Ammar Muhammadi
(D) Dr Abdul Salam

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The human heart is _______ ...?

(A) Ampullary Heart
(B) Pulsating Heart

(C) Myogenic Heart
(D) Neurogenic Heart

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Which of the following is not an enzyme...?

(A) Chemotrypsin
(B) Secretin

(C) Pepsin
(D) none

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