destruction - when something is destroyed, contamination - when something is made dirty or less pure, emission - when gas heat etc. produced or sent out, variation - when the amount or level of something changes, extinction - when a plant or animal stops existing, conservation - when you protect the natural envirorment, deforestation - when trees are cut down in an area,

the environment

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

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