3. What is an air mass? What are the essential conditions for the formation of an air mass? How does the passage of an air mass affect the weather conditions of a place. Explain by taking an example. Posted by Categories Uncategorized Date August 25, 2016 Comments 147 comments [New Batch] IASbaba’s Courses- UPSC 2021 : e-CLP, ILP, AIPTS, TLP Connect- ADMISSIONS OPEN! -> Click Here Share: