The average adult has a blood volume of about __________ liters....? Mcqs

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The average adult has a blood volume of about __________ liters....?

(A) 4
(B) 5

(C) 6
(D) 7

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During the process, more water will also evaporate and convert to a gaseous state of water called the...?

(A) Water Liquid
(B) Water Solid

(C) Water Vapour
(D) Water Ice

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Which of the following are the ingredients of gun metal...?

(A) Iron, Zinc and Titanium
(B) Iron and Tin

(C) Iron, Brass and Tin
(D) Copper, Tin and Zinc

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The process of splitting water molecules in the presence of light energy is called_________...?

(A) Electrolysis
(B) Photolysis

(C) Radiolysis
(D) Thermolysis

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The sun appears red at sunrise and sunset while it appears white at noon, because...?

(A) Of refraction
(B) It is cooler at sunrise and at sunset

(C) Of diffraction leading to red end of the spectrum reaching the earth.
(D) Of Scattering of light due to dust particles and air molecules.

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The ‘Solar Corona’ mainly consists of...?

(A) Gases
(B) Ice

(C) Molten lava
(D) Cosmic rays

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The optical phenomenon in which the splitting of white light into seven distinct colors occur is called...?

(A) Refraction
(B) Dispersion

(C) Reflection
(D) Diffraction

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Which of the following vitamin is known as Cobalamin...?

(A) vitamin B-1
(B) vitamin B-3

(C) vitamin B-9
(D) vitamin B-12

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A horizontal line that passes through the lens is called ____...?

(A) Focal Point
(B) Optical Centre

(C) Centre of Curvature
(D) Principal Axis

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Short sightedness is due to__________...?

(A) Shifting of the iris
(B) Elongation of eyeballs

(C) Weakening of the retina
(D) Weaker muscles

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