Pia-revista-de-quimica-Daniela-Michell (1)
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http://www.ecojoven.com/seis/10/co2.html<br />
http://<strong>de</strong>finicion.<strong>de</strong>/hidrocarburos/<br />
http://bibliotecadigital.ilce.edu.mx/sites/ciencia/volumen<br />
1/ciencia2/39/html/sec_8.html<br />
http://www.abc.es/20090128/nacional-sociedad/efectosactual-atmosfera-duraran-200901281222.html<br />
http://www.ehowenespanol.com/efectos-<strong>de</strong>l-dioxidocarbono-ambiente-info_234911/<br />
http://www.<strong>quimica</strong>s.net/2015/05/ejemplos-<strong>de</strong>hidrocarburos.html<br />
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