coal
The Ruhr .
Coal is valuable and it was especially so back then. And it was a hit to Germany that everyone wanted.
The Ruhr is a river in Germany and the valley the river flows through is a region famous in the past for heavy industry e.g. iron, steel, coal mining. So in short it is both a river valley and a region in Germany. It also used to be the centre of the German arms industry. Heavy vehicles are still produced there. Major cities in the area include Essen, Dortmund, Bochum, Gelsenkirchen, Muehlheim and many smaller towns. The Ruhr flows into the Rhine at Ruhrort in Duisburg, which is one of Germany's biggest inland ports.
The German heavy industry is in the Ruhr valley it also lies on a major river the Rhine, has natural resources like coal and a very high population density.
The Ruhr Valley is located in Germany, specifically in the state of North Rhine-Westphalia. Therefore, the countries you would find in the Ruhr Valley are just Germany.
The Damodar Valley
The largest valley in Europe is the Ruhr Valley, The Ruhr valley is an urban area in North Rhine, Germany, with a population of 8 1/2 million.
ruhr valley
Ruhr Valley
Essen
coal
The Ruhr Valley in Germany had a large deposit of coal, which played a significant role in the industrialization and economic development of the region.
Duisburg is a city in the Ruhr Valley located in western Germany. It is known for its steel industry and as a major inland port on the Rhine River.
Ruhr Valley
it controled the ruhr valley
The answer is d: Ruhr Valley pages 531-571(((just took the test 10-25-09.)))