تعمل ظاهرة التصحر على تحويل الأرض الزاعية الى أرض جرداء. ما أثر تلك الظاهرة في المكونات النظام البيئي الحية وغير الحية

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تعمل ظاهرة التصحر على تحويل الأرض الزاعية الى أرض جرداء. ما أثر تلك الظاهرة في المكونات النظام البيئي الحية وغير الحية

أخر المواضيع من قسم : اسألني