A reverse-air baghouse is being designed to filter particles from flue gas streams from different processes. (a) If the stream is at 180 F and is contaminated with ammonia and fertilizer dust, what would be the most appropriate fabric? What would be the maximum filtering velocity? (b) If instead the stream is at 250 F and is contaminated with sulfur dioxide and fly ash, what would be the most appropriate fabric? What would be the maximum filtering velocity