The correct answer is - along the Andes Mountains.
Most of the Biosphere Reserves in the South American continent are located in a linear manner as it is the stretching of the most dominant mountainous range on the continent, the Andes. It is no wonder that there are so many Biosphere Reserves on the Andes because this mountain range creates lots of beautiful and unique ecosystems, as well as land features, and they are both, very attractive and important for the scientists, as well as the tourists.
