Chlorofluorocarbon - Is the cause of depletion of ozone layer., Global warming - is the cause of melting of glaciers on the Polar ice caps., Air pollution - It causes respiratory diseases in human beings., Making furniture and paper - Is the cause of deforestation, Traffic Jam - Is the cause of noise pollution,

Tabla de clasificación

Estilo visual

Opciones

Cambiar plantilla

¿Restaurar actividad almacenada automáticamente: ?