Barnacles growing on the back of whale is an example for ________________...? Mcqs

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Barnacles growing on the back of whale is an example for ________________...?

(A) mutualism
(B) parasitism

(C) amensalism
(D) commensalism

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What are the three basic units of measurement for the metric system...?

(A) Metre, litre and gramme
(B) Centimetre, kilograms and metric

(C) Kilogram, mass and energy
(D) Kelvin, cd and mole

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An important ore of chromium is ...?

(A) Argon
(B) Chromite

(C) Mirage
(D) Diamond

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A plane mirror forms an image that is ____...?

(A) Real and Inverted
(B) Virtual and Inverted

(C) Real and Upright
(D) Virtual and Upright

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Light Emitting Diode (LED) is a ___ semiconductor device ....?

(A) 3 lead
(B) 4 lead

(C) 7 lead
(D) 2 lead

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Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ...?

(A) Zeolites
(B) Sulphonides

(C) Lime
(D) Nitrates

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One atmospheric pressure is equal to _____...?

(A) 10325 Pascal
(B) 106075 Pascal

(C) 10523 Pascal
(D) 101325 Pascal

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Vitamin C is essential for ______...?

(A) Appetite
(B) Muscles

(C) Growth and repair of tissues
(D) None of these

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Instrument used for measuring very high temperature is __________...?

(A) Pyroscope
(B) Pyrometer

(C) Seismograph
(D) Xylometer

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Which of the following disease affects the skin ...?

(A) Rickets
(B) Osteoporosis

(C) Anemia
(D) Pellagra

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