Energy saving
fecha:2011-05-16 13:40
estado:para resolver
pregunta:admin
pollution and social pollution in the end the family which is more serious? Recent studies indicate that: social industrial sources of pollution Forty per cent of only one account for the pollution of modern family fifty-nine%. Compared with the community, although the family is a cell of society, and to harmful levels of pollution, the family is relatively more serious cases, have been detected hundreds of species of toxic and hazardous substances, but also has ten or more common. There is a s
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