Autor: proease | Publicado: 2011-10-03T17:10:00-07:00

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1)&nbsp;&nbsp; Como está a qualidade do ar nas grandes cidades do Brasil?
O ar, tal como a água e o solo, é um recurso indispensável à vida na Terra. Através de ciclos naturais, os seus constituintes são consumidos e reciclados. A atmosfera tem assim uma certa capacidade depuradora que, em condições naturais, garante a eliminação dos materiais nela descarregados pelos seres vivos.
2)&nbsp; Que tipos de poluentes são lançados na atmosfera e o que esta sendo feito para combater essa poluição?
Os principais são monóxido de carbono (CO), dióxido de carbono (CO2),&nbsp; gás metano (CH4), dióxido de enxofre (SO2), óxidos de azoto (NO,NO2).&nbsp; o que se pode fazer é usar combustiveis biodegradáveis, não provocar queimadas, Campanhas de conscientização da população.
3)&nbsp; Como está o ar de sua cidade?&nbsp;&nbsp;&nbsp;
Nossa cidade tem mudado a cada dia que passa,aPoluição tem tomado conta dela,nosso ar não é mais 100% limpo,nem temos mais ar puro.
Componentes: Bruna Oliveira;Beatriz Costa, Erivan Macedo, Erica Santana, Juliana Costa, Rainês de Jesus.