The exercise was created 2017-03-02 by sara_hulten. Question count: 10.
Normally, all words in an exercise is used when performing the test and playing the games. You can choose to include only a subset of the words. This setting affects both the regular test, the games, and the printable tests.
All None Save
https://spellic.com/eng/exercise/sara-vt17-ak9-was-ich-fur-die-umwelt-tue.7149763.html