1) Which is biodegradable? a) plastic bag b) paper bag 2) Is a plastic pen biodegradable? a) Yes, it is. b) No, it isn't. 3) Is a cardboard box biodegradable? a) Yes, it is. b) No, it isn't 4) Is a newspaper biodegradable? a) Yes, it is. b) No, it isn't. 5) Are these pots biodegradables? a) Yes, they are. b) No, they aren't 6) Are these cups biodegradable? a) Yes, they are b) No, they aren't

Pollution

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟