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| Radio | 16 bit 44.1 kilohertz stereo WAV | 6.22 meg |
| Radio | 320 kbps MP3 | 1.41 meg |
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| on-line | stereo WMA | 447 k |
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Question 12. How does carbon dioxide spread in the atmosphere?
Dr. Azadeh Tabazadeh: "Carbon dioxide is not an air pollutant, so, you just breathe it in and breathe it out, and that’s what makes these compounds kind of dangerous because if it doesn’t react with your body, it doesn’t react quickly in the atmosphere, so it has a chance to globally – to get globally distributed in the atmosphere. For example, if you tag a carbon dioxide molecule that’s coming out of your car, you know, you tag it as a red color – a few months later you can find that molecule all the way in the South Pole. So, if a molecule has a long lifetime in the atmosphere, then it gets globally distributed. And these types of molecules are the ones that cause the global problems."
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