The importance of perspiration is to ___________...? Mcqs

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The importance of perspiration is to ___________...?

(A) Eliminate body odours
(B) Improve the general health

(C) Open the pores in the skin
(D) Regulate body temperature

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Caustic Soda is extensively used for making __________...?

(A) Surf
(B) Soap

(C) Plaster of Paris
(D) Gum

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Which of the following is not an Arrhenius acid...?

(A) HCl
(B) CO2

(C) HNO3
(D) H2SO4

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The speed of sound in aluminium is _____...?

(A) 5620 m/s
(B) 6420 m/s

(C) 7220 m/s
(D) 4820 m/s

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Air pollution is caused by...?

(A) Solid
(B) Liquid

(C) Gases
(D) All of these

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Which of the following is commonly called a polyamide ...?

(A) Rayon
(B) Nylon

(C) Terylene
(D) Orion

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Short-sight defect could be corrected by a _____________ lens...?

(A) concave lens
(B) convex lens

(C) converging lens
(D) none of these

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Which of the following is not a chemical reaction ...?

(A) Burning of coal
(B) Conversion of water into steam

(C) Digestion of food
(D) Burning of paper

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Feeding sequences and relationships are called...?

(A) Food webs
(B) Ecosystem

(C) Food chains
(D) Habitats

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Dermatophagia is a ____ condition....?

(A) Physiological
(B) Psychological

(C) Dermatological
(D) Genital

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