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Science Quiz #543

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1

The process of producing wootz steel, used in many famous early and mediaeval European swords, is ascribed to a method developed where?

A
India
B
Persia
C
China
D
Japan
Select from the options above.
2

What reddish-brown bean-shaped organs lies in the abdomen just under the diaphragm, one on each side of the backbone?

A
Spleen
B
Kidneys
C
Liver
D
Lung
Select from the options above.
3

Which best describes the voraciously carnivorous (sometimes cannibal) small fish Histrio histrio, the Sargassum fish?

A
It can survive out of water for extended periods of time
B
Its pelvic and pectoral fins are prehensile and almost look like clawed hands and feet
C
All of these
D
Its gills are pores near the pectoral fins rather than slits
Select from the options above.
4

What medical apparatus is a large metal cylinder with a compressor that enables the internal air pressure to be changed rhythmically around 12 times per minute?

A
Inhaler
B
Electrocardiogram
C
Iron Lung
D
Oxygen cylinder
Select from the options above.
5

What geometric figure could be constructed from the difference in the sums of the internal angles of an octagon and a pentagon?

A
Hexagon
B
Square
C
Another pentagon
D
Triangle
Select from the options above.
6

A number of discoveries by English scientist and instrument-maker Francis Hauksbee, or Hawksbee, (1660 – 1713) established principles and/or machines which either were, demonstrated, or led to which of these?

A
All of them
B
Generation of static electricity
C
Neon lighting, and mercury vapour lamps
D
For a given mass of gas at a constant pressure, the volume is proportional to its temperature
Select from the options above.
7

What is a "thresher"?

A
Rat
B
Antelope
C
Dog
D
Shark
Select from the options above.
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