Saturday 23 November 2013
Les ressources naturelles
http://www.brainpop.fr/sciencesdelaterre/developpementdurable/ressourcesnaturelles/
http://web.ebscohost.com/pov/search/basic?sid=5a47a535-7a7a-4840-bed3-fba980c688a6%40sessionmgr4&vid=1&hid=28
http://www.rcbc.ca/education/additional-resources/recycling-factsheets
http://www.technologystudent.com/prddes1/lifecy1.html
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