Most of the soil is Sandy and clayey soils are not uncommon. Pebbly and gravelly soils are rare. Kankar (calcareous concretions) beds are present in some regions along the river terraces. The soil is porous because of its loamy (equal proportion of sand and clay) nature
(Answer was from google)
Hey how’s it going man? I’ll be glad to help?
Answer:
It allows for easier access to other South American countries for trade.
I hope this helps you!