Answer: the Balkan Mountains
Explanation:
The ranges in miles of the other options are:
-Ural Mountains, 1553 Mi
-Caucasus Mountains, composed of two ranges, the Greater Caucasus and the Lesser Caucasus, 100 Mi
-Carpathian Mountains, 932 Mi
-Balkan Mountains, 340 Mi
Mountain ranges are sources of several mineral and forestal resources, and the longer the range the more resources it provides, as it is the case of the Ural Mountains that run through Russia and sustain its economy.
In the case of the Balkan Mountains, the region is home of some of the largest deposits of silver. In Kosovo, on top of silver, from the mines in the Balkans other minerals are extracted such as lead, zinc, bismuth and cadmium. Extraction of metals and minerals is also one of the major activities of Bulgaria. The Western Balkans have the largest deposits of copper, chromite, lead and zinc of Europe, but their extraction has been constantly interrupted due to the conflicts in the region. Recently, there are efforts to boost the economy of the Balkan countries via extraction of the minerals in the mountain range.
