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

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

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Basic General Knowledge
The main purpose of ASEAN (Association of South-East Asian Nations) is

to maintain higher standards of living among member nations
to provide collective defence and economic cooperation
None of these
to accelerate economic progress and maintain economic stability

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