Brain › General KnowledgeDry air consists mostly of what gas?Carbon DioxideOxygenNitrogenArgonAnswerThe correct answer is C) Nitrogen.More General Knowledge questionsWhich of these stories was written by the Brothers Grimm?What role does the carburetor have in the engine?What does lacrimation mean?What was the second song played on MTV?What was Elvis Presleys second number 1hit?Which team won the second Super Bowl?Play Brain · Practice