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,

Environment

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تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

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