What chemical change occurs when iron rusts?
Correct answer D. Oxidation
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Everyday Science MCQs
Page 72 of Everyday Science multiple-choice questions with answers. Tap an option to check yourself.
Page 72 of 198
How long does the Earth take to turn through 1° of longitude?
Correct answer D. 4 minutes
Who crystallised the tobacco mosaic virus?
Correct answer D. Stanley
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Into what does a microphone convert sound energy?
Correct answer C. Electrical signals
What are vascular plants called?
Correct answer A. Tracheophytes
How many joules is one BTU (British thermal unit) equal to?
Correct answer C. 1055 joules
What special structures grow out from the thallus of Marchantia?
Correct answer C. Rhizoids
By what other name is dengue fever known?
Correct answer D. Breakbone Fever
Who proposed the terms procariotique and eucariotique?
Correct answer A. Chatton
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Which substance is used as a moderator in a nuclear reactor?
Correct answer B. Heavy water
Which of the following rays has the greatest penetrating power?
Correct answer B. Gamma rays
In which form is the malarial parasite injected into humans?
Correct answer A. Sporozoites
About how many million years does the Sun take to complete one orbit around the Milky Way?
Correct answer A. 230
What colour do Gram-positive bacteria show after staining with crystal violet?
Correct answer D. Purple
Into how many main layers is the Sun commonly divided?
Correct answer C. 3
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What term is used for naked viruses that lack an envelope?
Correct answer C. Virions
What percentage of the solar system’s mass is contained in the Sun?
Correct answer A. 99.86%
What causes influenza in humans?
Correct answer A. Virus
At what speed, in km/s, does the Sun move around the centre of the galaxy?
Correct answer B. 220
What are the horizontal rows of the periodic table called?
Correct answer A. Periods