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
WTO, (World Trade Organization), WHO, (World Health Organization) and IDA (International Development Association) are ___ of General Assembly (UNO).

other United Nations Organs
specialized agencies and other autonomous organization
principal organs
they are independent agencies and not a part of UNO

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