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Science Quiz #71

Science and Nature Quiz for 26 May 2010

A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

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1

What is dichlor-diphenyl-trichlorethane used for?

A
Headaches
B
Party pills
C
Insecticide
D
Preventing nappy rash
Select from the options above.
2

What is a natural number called if it has exactly two distinct divisors?

A
Integer
B
Prime number
C
Composite number
D
Perfect number
Select from the options above.
3

Which of these is food for a dragonfly?

A
Other insects
B
Giraffes
C
Apples
D
Dragons
Select from the options above.
4

What occurs when a ray of light meets an obstacle such as a fine wire?

A
Diffraction
B
Diffusion
C
Refraction
D
Debacle
Select from the options above.
5

What was developed at the Bell Telephone Company under the direction of Dr William Shockley?

A
Transformer
B
Transistor
C
Compact disc
D
Mobile telephone
Select from the options above.
6

Which of the following is an alloy of copper and zinc, sometimes containing lead, tin or iron?

A
Brass
B
Bronze
C
Aluminium
D
Tungsten
Select from the options above.
7

What is the "First Law of Robotics" devised by Isaac Asimov in his science fiction stories?

A
A robot must protect its own existence at all costs
B
A robot must keep itself very clean at all times
C
A robot must open doors for people, even if it has its arms full
D
A robot may not injure a human being or, through inaction, allow a human being to come to harm.
Select from the options above.
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