The main constituent of Pearls are: ______________...? Mcqs

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The main constituent of Pearls are: ______________...?

(A) Calcium oxide &Ammonium Chloride
(B) Calcium Carbonate &Megnesium Carbonate

(C) Aragonite & Conchiolin
(D) None of these

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A gas is a state of matter _______...?

(A) Definite volume and definite shape
(B) Definite volume and indefinite shape

(C) Indefinite volume and indefinite shape
(D) Indefinite volume and definite shape

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Which part of a D.C motor reverses the direction of current through the coil every half-cycle...?

(A) The armature
(B) The commutator

(C) The brushes
(D) The slip rings

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The Renaissance scientist who explained how planets moved around the sun was...?

(A) Kepler
(B) Rebelais

(C) Francis Bacorr
(D) Gutenber

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The movement of any solvent across a semipermeable membrane is called__________...?

(A) Osmosis
(B) Cataphoresis

(C) Electrolysis
(D) Electrophoresis

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Which of the following have maximum calorific value...?

(A) Carbohydrates
(B) Fats

(C) Proteins
(D) Vitamins

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The species that flower are called ______________...?

(A) Gymnosperms
(B) Bryophytes

(C) Angiosperms
(D) Algae

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What’s the Strongest Muscle in the Human Body based on its weight...?

(A) Hands
(B) Masseter

(C) Neck
(D) Legs

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Solid can be converted into liquid by...?

(A) Heating
(B) Cooling

(C) Both A and B
(D) None

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What prevents the earth’s atmosphere from drifting away into space...?

(A) Gravity
(B) Ozone layer

(C) Troposphere
(D) Ecosystem

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