Before revision: For example, on the plains of North Germany, Poland or Hungary it may be applied to terrain with a height variation of just 50 metres, whilst in the Alpine Foreland or in the Pre-Alps|Voralpen it might refer to terrain with a height difference of at least 100–200 metres.
After revision: For example, on the plains of North Germany, Poland or Hungary it may be applied to terrain with a height variation of just 50 metres, whilst in the Alpine Foreland or in the Voralpen it might refer to terrain with a height difference of at least 100–200 metres.