dirty, schmutzig, clean, sauber, dangerous, gefährlich, environmentally friendly, umweltfreundlich, harmful, schädlich, to protect, schützen, to save, sparen, to use, benutzen, to seperate, trennen, to recycle, recyceln, to threaten, bedrohen, to pollute, verschmutzen, to throw away, wegwerfen, to destroy, zerstören, to turn on, anmachen, to turn off, ausmachen, rubbish, Abfall, exhaust fumes, Abgase, traffic, Verkehr, waste, Müll, air pollution, Luftverschmutzung, hole in the ozone, Ozonloch, extinction, Aussterben, greenhouse effect, Treibhauseffect, deforestation, Abholzung, can, Dose, light, Licht, deposit, Pfand, flood, Uberschwemmung, heating, Heizung.

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