OCR Text |
Show What Becomes of Chimney Smoke? Smoke is composed of gases and of little particles of fuel which are carried car-ried up the chimney by suction. Knowing this, the ultimate end of smoke may be readily explained. The fuel particles fall to the ground of their own weight when they get beyond be-yond the drawing power of the chimney chim-ney and out of the current of the heated air formed in the chimney flue. There is a lot of carbonic acid gas in smoke which mixes with the air and eventually becomes food for plants. Some other gases which are not entirely en-tirely consumed when they come from the chimney, are burned by the air still more until they, too, become carbonic car-bonic acid gas. |