Everyday Science Our atmosphere comprises of __________ Nitrogen? Options:A. 38% NitrogenB. 58% NitrogenC. 78% NitrogenD. None of theseView AnswerC. 78% Nitrogen Continue Reading Previous: _________ means a line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period.Next: What is the percentage of salt water on earth surface?