Online Science Quiz 3

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Genral Knowledge Science Quizz
This is the general knowledge questions and answers section on "GeneralScience".This quiz will test your general science knowledge.

1. The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is

Argon
Xenon
Helium
Krypton

2. The gases used in different types of welding would include

oxygen and hydrogen
oxygen, hydrogen, acetylene and nitrogen
oxygen, acetylene and argon
oxygen and acetylene

3. The property of a substance to absorb moisture from the air on exposure is called

osmosis
deliquescence
efflorescence
desiccation

4. In which of the following activities silicon carbide is used?

Making cement and glass
Disinfecting water of ponds
cutting very hard substances
Making casts for statues

5. The average salinity of sea water is

3%
3.5%
2.5%
2%

Score = Correct answers:

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