The country primarily known for its mountainous terrains and jungles is Brazil. Brazil's landscape features diverse geographical features, including the Andes mountain range and lush rainforests such as the Amazon Rainforest. The Andes are renowned for their stunning peaks and biodiversity, while the Amazon is famous for being one of the most biodiverse regions on the planet. Brazil's unique ecosystems support a wide variety of plant and animal life, making it a critical area for conservation efforts. This natural wealth also contributes greatly to Brazil's cultural and economic identity.