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

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

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Basic General Knowledge
The official languages of the United Nations are

Arabic, Chinese, English, French, Russian and Spanish
African, Chinese, English, French, German and Spanish
Arabic, Japanese, Chinese, English, French and German
Chinese, English, French, Hindi, Japanese and Spanish

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