Which of the following areas is of environmental concern to Europeans? a. the Mediterranean Sea c. the Danube River b. the North Sea d. all of the above

The answer is D. all of the above. That is because the Mediterranean sea is closely connected to almost all southern European countries, the Danube is one of the biggest rivers in Europe, and the North Sea basin is connected to almost all Northern European countries. Of any of these was to have a natural disaster the foundations of Europe would be shook seriously.