Final answer:
Romania is the country with the Transylvanian Alps, part of the Carpathian Mountains, and is known for its rich biodiversity and environmental conservation efforts.
Step-by-step explanation:
The country that has the Transylvanian Alps in the central part is Romania. The Transylvanian Alps, also known as the Southern Carpathians, are a range of the Carpathian Mountains that circle the country. The eco-rich Romanian forests cover a vast area, and Romania is prominent for its population of European brown bears and wolves.
Furthermore, Romania's notable features include the Danube River, which forms a natural boundary with Bulgaria and Serbia and flows into the Black Sea. The country's commitment to environmental conservation is significant, with substantial portions of its forests being set aside for watershed conservation programs.