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The fine particles are mostly made from gases. There are four major origins for that gases which are responsible for these particles: rock (vaporized during combustion or casting), carbon from combustion, organic carbon, sulfates and nitrates. Take sulphur dioxide. It is created during engine combustion, but when it climbs into the atmosphere and mixes with rain it will become sulphuric acid. We all probably know very well what that will do- since it is highly corrosive and dangerous in concentration. Recently I had a fascinating conversation which has a pastor regarding fund raising. We were exploring solutions to raise money for a few with the programs the church desires to implement. Because of my understanding synergy, I suggested that dealing with another charity would have been a approach to expand their donor base, improve their exposure and broaden their appeal. With this because they authorized the Sikh Army to cross the Sutlej in a very headlong confrontation using the English. Ranjit had signed a treaty with all the British that forbade him to cross the Sutlej River, but this became broken. The English were however preparing for that conflict and they had spies inside Lahore Durbar, with even the Prime Minister, the grandfather of the present Kashmir ruler( Now deposed) Karan Singh being in league with them and plotting the defeat in the Sikh Army. This service what food was in return for him to be made the Maharajah of Jammu and Kashmir.