5th question

5th question

A bog soil changes when used for arable farming, in the course of which one also speaks of bog subsidence, by how many mm does a bog sink on average when used for arable farming in Germany?

  1. As fast as it can grow naturally - 1mm per year
  2. Faster than it could grow naturally - 1.5mm per year
  3. Even more - 3mm per year
  4. Less than 1mm per year
(Changed: 11 Feb 2026)  |  Kurz-URL:Shortlink: https://uol.de/p96944en
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