The Great Smog of 1952 was a severe air-pollution event which affected _______.
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June 21 marks the winter solstice in the _________ Hemisphere.
When warm air rises up and cold air from the surrounding areas rushes in to fill its place then this sets up ________________ in air.
Which Railway station in Uttar Pradesh (UP) has been renamed as 'Maa Barahi Devi Dham'?
Who is the author of "I Too Had A Love Story"?
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Which of the following elements were not found in the form of archaeological remains from Kalibanga?
Gandhiji's first Satyagraha in India was held at __________