Basic General Knowledge
Michael Faraday discovered

electromagnetism
All of these
benzene, liquid gases and optical glass
the induction of electric current

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Basic General Knowledge
Olympic emblem is composed of five intertwined rings, each of a different colour, representing the five continents of the world as

Blue ring - Asia; Yellow ring - Europe; Black ring - Africa; Red ring- America; Green ring - Oceania
Blue ring - Europe; Yellow ring - Asia; Black ring - Africa; Red ring- Oceania; Green ring - America
Blue ring - Europe; Yellow ring - Asia; Black ring - Africa; Red ring- America; Green ring - Oceania
Blue ring - Asia; Yellow ring - Europe; Black ring - Oceania; Red ring- Africa; Green ring - America

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