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Lake Superior in winter, as seen from Duluth, ...LAKE SUPERIOR IN WINTER Image via Wikipedia
After nitrogen and oxygen, the third main constituent gas in the atmosphere is …….?
Argon
The first women to win Nobel Prize for Economics is ………?
Saros Cycle is related with ……..?
Eclipse
The most turbulant atmospheric phenomenon is ……………?
Tornado
Who invented barometer?
 What is the period  between two tides?
12 hours and 25 minutes
The longest river in Europe is ……………….?
Volga
The largest fresh water lake in the world is …………..?
Which  water body was known as ‘Ratnakara’ in the ancient times?
The strait that separate the continents of Europe and Africa is ……………?
Gibralter Strait
Which is the most populated island  in the world?
Java (Indoneasia)
Which water body is called as ‘Herring Pond’?
Which elemant has the smallest atom?
Hydrogen
Which is the 100th element in the Periodic Table?
Fermium
Which is the common element in all the acids?
Hydrogen
pH Scale was invented by………….?
Soren Sorenson
The chemical name of ajinomoto is ………….?
Monosodium glutamate
The acid contained in the tea is …………..?
Tanic Acid
The glass used to manufacture electic bulbes is ………..?
Flint Glass
Who is known as the ‘Father of Atom Bomb’?
Robert Oppenheimer
Pollution of which metal causes Itailtai Diseases?
Cadmium
Which metal is kept in wax?
Lithium
The alloy of copper and tin is ……………?
Bronze
The chemical name of marble is ………..?
Calcium carbonate

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