The absolute refractive index of air is
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Which of the following is the largest mammal?
Which among the following has the maximum life span
Which one of the following bio reserves of India is not included in the World Network of Biosphere Reserve?
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 of the following Country doesn't have a written Constitution?
Who is the the present (March 2018) Prime Minister of Pakistan?