English | German | |
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Chemistry | ||
Chemistry | environmental problems | Umweltprobleme [pl] |
Environment | ||
Environment | environmental problems | Umweltprobleme [pl] |
Environment | environmental problems | Ökoprobleme [pl] |
English | German | |
---|---|---|
General | ||
General | basic environmental problems | grundlegende Umweltprobleme [pl] |