Approximate age of earth is ________...? Mcqs

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Approximate age of earth is ________...?

(A) 4.14 billion years
(B) 4.64 billion years

(C) 4.54 billion years
(D) 4.34 billion years

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Which metal is added to steel to make it stainless steel...?

(A) Chromium
(B) Aluminium

(C) Carbon
(D) Copper

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Nail polish remover contains___________...?

(A) Acetone
(B) Benzene

(C) Acetic acid
(D) Petroleum ether

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Weight is the pull of _____ that acts on the mass of an object....?

(A) Stars
(B) Magnet

(C) Gravity
(D) Electrostatic force

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Naturally occurring enzyme used as a defense chemical by bacteria ______...?

(A) Defense protein
(B) Restriction enzyme

(C) Hydrolytic enzyme
(D) Ligase enzyme

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The Microbes used in baking industry is ________...?

(A) Penicillin
(B) Yeast

(C) Water
(D) None of these

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Water soluble Vitamins are _________...?

(A) A & D vitamins
(B) B & C vitamins

(C) A & K vitamins
(D) B & K vitamins

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Which of the following objects that do not allow light to travel through them are called...?

(A) Transparent
(B) Translucent

(C) Opaque
(D) None

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Which of these is a micronutrient of plants...?

(A) Oxygen
(B) Nitrogen

(C) Boron
(D) Carbon

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All are postulates of cell theory except...?

(A) New cell is derived from pre-existing cells
(B) Cell does not contain the hereditary material

(C) All living organisms are made up of one or more cells
(D) Cell is the fundamental unit of life

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