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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Most drugs are excreted through_____________...?

(A) Kidney
(B) Skin

(C) Gallbladder
(D) Lungs

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Which one of the following animal is a decomposer...?

(A) Mould
(B) Wolf

(C) Bird
(D) Cat

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Scientists who forecasting weather by continuously tracking and predicting the path of tornadoes, hurricanes or floods are called...?

(A) Geologists
(B) Meteorologists

(C) Astronomers
(D) Oceanographers

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The speed of the sound in diamond is _____...?

(A) 6000 m/s
(B) 12000 m/s

(C) 9000 m/s
(D) 15000 m/s

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How many meters are in one mile...?

(A) How many meters in one mile?
(B) 1409.34

(C) 1509.34
(D) 1609.34

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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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Feeding sequences and relationships are called...?

(A) Food webs
(B) Ecosystem

(C) Food chains
(D) Habitats

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If proton number is 19, electron configuration will be ______...?

(A) 2, 8, 9
(B) 2, 8, 8, 1

(C) 2, 8, 1
(D) 2, 8, 3

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The part of brain involved in balance and precision in movements is ______...?

(A) Cerebrum
(B) Cerebellum

(C) Thalamus
(D) Medulla oblongata

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