Basic General Knowledge
The principal bodies of the UNO are I.The General Assembly and the Security Council II.The Economic and Social Council III.International Court of Justice IV.Trusteeship Council and secretariat

All of these
I, II
I
I,II,III

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Basic General Knowledge
The exhaled air contains

a mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage
carbon dioxide only
a mixture which has more carbon dioxide than oxygen
a mixture of carbon dioxide and nitrogen

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