Small university city in southern Germany at the river Danube with about 120,000 inhabitants.
Student groups with an even number of female and male students at the age of 20 to 29.
Eighty percent of all elements on earth are metals
Only eighteen elements in the periodic table
Group of organic compounds with at least one covalently bonded chlorine atom
Additional information for the interpretation of contamination data
1997 - 2019