6 th poullution
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•،أرينيوس سفانتىالسويدي
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Greenhouse Effectاالحتباس الحراري
Green House Gases
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أو غازات االحتباس الحراري الغازات الدفيئةGreenhouse gases
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وهي تشمل بخار الماء .١
CO2(ثاني أكسيد الكربون.٢
N2O النيتروزأكسيد .٣
CH4الميثان.٤
O3األوزون.٥
CFCsالكلوروفلوركاربون.٦
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أهمية الغازات الدفيئة:حیث" تلعب دورا حيويا ومهما في اعتدال درجة حرارة سطح األرض •تمتص األرض الطاقة المنبعثة من اإلشعاعات الشمسية وتعكس -
- امتصاص جزء من األشعة تحت الحمراء°
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كيف يحدث االحتباس الحراري ؟
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:غير طبيعية وطبيعية
أسباب التغيرات المناخية
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:طبيعية: أوال••
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:مثل النشاطات اإلنسانية المختلفة• -أ•
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الظواهر المتوقعة نتيجة االحتباس الحراري
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