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38,065,348 results
Biology – a beautiful field of mathematics where division and multiplication are the same thing. Since we're doing bad biology ...
1,992,052 views
3 years ago
EU-Bio oder doch lieber Demeter, Bioland oder Naturland? Welche Unterschiede gibts bei den Biosiegeln? Und gibt es besseres ...
24,524 views
1 year ago