What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called...? Mcqs

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What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called...?

(A) Paint
(B) Glass

(C) Gun Powder
(D) Cement

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An adult have permanent teeth...?

(A) 30
(B) 40

(C) 50
(D) 32

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Human population growth is greatest in developing countries because ...?

(A) the birth rate is high in developing countries
(B) the death rate is high in developing countries.

(C) much of the population has already reached the child bearing age.
(D) most of the world’s population lives in industrialized countries.

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Sound travels about ___________times faster in water than in air....?

(A) 2
(B) 3

(C) 4
(D) 5

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The solar wind is a stream of charged particles mostly...?

(A) protons and electrons; flows out from the sun
(B) electrons; flows out from the sun

(C) protons; flows out from the sun
(D) protons and electrons; revolves around the sun

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In mercury thermometer, mercury of bulb expands and rises in the tube which has linear scale...?

(A) -20°F - 100°F
(B) 35°F - 105°F

(C) 100°F - 120°F
(D) 94°F - 108°F

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Red color of tomato is due to___________...?

(A) Anthocyanin
(B) Xanthophyll’s

(C) Lycopene
(D) None of these

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Chemical reaction requires particular conditions to carry down at proper rate, especially...?

(A) Temperature and Nature
(B) Nature and Pressure

(C) Nature and Structure
(D) Temperature and Pressure

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The SI unit of Heat is________...?

(A) Watt
(B) Volt

(C) Joule
(D) Newton

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What is the largest cell in the human body...?

(A) Ovum
(B) RBCs

(C) Sperm cell
(D) Neuron

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