create a 7 to 10 slide PowerPoint presentation that describes environmental benefits and challenges of urbanization

Answer 1

what exactly do you want help with, we certainly can't do it for you. I can give you suggestions on how to make a powerpoint.

Answer 2

This is something you need to do once you have gathered your data.

Since this is not my area of expertise, I searched Google under the key words "urbanization environment" to get these possible sources:

http://zebu.uoregon.edu/1999/ph161/l21.html
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http://www.apfed.net/apfed1/pdf/APFED3_EM_doc5.pdf
http://www.questia.com/PM.qst?a=o&d=89766111
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I hope this helps. Thanks for asking.