Environment - the surroundings and conditions where a person, plant or animal lives, Ecosystem - an ecosystem is made up of all the living and non-living things in an area which interact with each other, Pollution - the presence or introduction to the environment of a substance that has harmful effects, Deliberate - something done in a way that is planned,

12.1(a) Environmental pollution and health

بواسطة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟