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?
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?
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
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?
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5
What geometric figure could be constructed from the difference in the sums of the internal angles of an octagon and a pentagon?
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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?
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
Select from the options above.
