Lesson
Lesson-11.1.9- State the adverse effect of these common pollutants on buildings and on health and discuss why these pollutants are of global concern.
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Lesson-11.1.8- State the source of each of these pollutants: ??? oxides of nitrogen from car engines ??? lead compounds from leaded petrol.PreviousLesson-11.1.10- State the conditions required for the rusting of iron ??? Describe and explain methods of rust prevention, specifically paint and other coatings to exclude oxygen.Next