1. Start! 2. On Tonight’s News Channel… 3. At School… Hey guys, don’t you ever wonder why the air’s so bad now? Must be all the CO Mr Chiu keeps going on about…
1. Start! 2. On Tonight’s News Channel… 3. At School… Hey guys, don’t you ever wonder why the air’s so bad now? Must be all the CO Mr Chiu keeps going on about…
1. Start! 2. On Tonight’s News Channel… 3. At School… Hey guys, don’t you ever wonder why the air’s so bad now? Must be all the CO Mr Chiu keeps going on about…
Slide 1 Air Pollution i Slide 2 Exosphere Thermosphere Mesosphere Stratosphere Troposphere Slide 3 Primary pollutants: are mixed vertically and horizontally and are dispersed…