Pollution

Read these sites to help you answer your questions about pollution.

http://kids.nationalgeographic.com/kids/search/?frontend=cms_ngkids&output_format=xml_no_dtd&num_results=25&filter=p&collection=cms_ngkids&meta_field_to_return=ngs-gsa-feed-title&meta_field_to_return=ngs-gsa-feed-slug&meta_field_to_return=ngs-gsa-feed-description&meta_field_to_return=ngs-gsa-feed-keywords&meta_field_to_return=ngs-gsa-feed-thumbnail&required_meta_field_1=ngs-gsa-feed-mediaType%3Avideo&required_meta_field=ngs-gsa-feed-video-source%3Akids&meta_field_filter=ngs-gsa-feed-title&meta_field_filter=ngs-gsa-feed-description&meta_field_filter=ngs-gsa-feed-keywords&oe=utf-8&search=pollution&search_dest=content&btnG=&start=0&sort=

http://www.youtube.com/watch?v=hy36t8p2Hfk&safe=active

http://tiki.oneworld.net/pollution/pollution_home.html?gclid=CN6N3pSe-7cCFUFLpgodiVcATw#!prettyPhoto[iframes]/0/