Which of the following is a function of Vitamin A in the body...? Mcqs

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Which of the following is a function of Vitamin A in the body...?

(A) Vision, bone and body growth
(B) Immune defenses, maintenance of body linings and skin

(C) Normal cell development and reproduction
(D) All of the above

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Which pigment is responsible for the red color inside a watermelon...?

(A) Lycopene
(B) Beta Carotene

(C) Alpha Carotene
(D) All of these

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Substances that react with both acids and bases are called...?

(A) Conjugate acids
(B) Conjugate bases

(C) Amphoteric substances
(D) Buffers

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Chemically finger nails are made up of ____________...?

(A) Carbohydrate
(B) Fats

(C) protein
(D) Starch

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In which layer of atmosphere does commercial aircrafts usually fly...?

(A) Stratosphere
(B) Troposphere

(C) Mesosphere
(D) Thermosphere

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Total internal reflection of light is possible when light enters from ____...?

(A) Air to water
(B) Glass to glass

(C) Water to air
(D) Air to glass

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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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Which ocean is called “Ring of Fire”...?

(A) Indian Ocean
(B) Pacific Ocean

(C) Atlantic Ocean
(D) Antarctic Ocean

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Maximum biological damage is caused by ____________...?

(A) Gamma rays
(B) Alpha rays

(C) Beta rays
(D) Microwaves

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Sugar dissolution in water, actually represents solute and solvent combination of _____...?

(A) Solid solid solution
(B) Liquid liquid solution

(C) Gas liquid solution
(D) Solid liquid solution

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