Basic General Knowledge
The three abundant elements in the earth's crust are aluminium, oxygen and silicon. The correct order of their abundance is

oxygen, aluminium, silicon
silicon, oxygen, aluminium
aluminium, silicon, oxygen
oxygen, silicon, aluminium

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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 - 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
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

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