Explanation

 In 1952, the two boards were amalgamated into what we now call as Inter Services Selection Board, commonly known as ISSB and it was established at Kohat.

Explanation

The olive tree is a symbol of peace and friendship 

The use of the olive branch as a symbol of peace in Western civilization

It is use as a symbol in at least the 5th century BC in Greece

The lotus flower is indeed a symbol of culture and civilization.

It is often associated with creation and rebirth in Eastern cultures like Hinduism and Buddhism.

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Explanation

China is the largest emitter of carbon dioxide gas in the world

Explanation

A Promised Land is a memoir by Barack Obama, the 44th president of the United States from 2009 to 2017.

 Published on November 17, 2020, it is the first of a planned two-volume series.