Because the Amazon rainforest almost covers the Amazon Plain, the Amazon Plain in the tropics is rarely visited by people. As the world's largest river, the Amazon River can hardly play a series of benefits such as shipping, irrigation, and power generation.

Although the Brazilian Plateau has a suitable environment, for example, the capital Brasilia is located on the Brazilian Plateau, there are no large rivers here to communicate with the outside world, and the Paraná River, which is only usable, is an international river, which makes Brazil have to rely on others.

And it seems that there are more things that make Brazil desperate. The most fundamental reason why Brazil's coastline on the map is relatively straight is the existence of the "Brazilian Shield", which is more desperate than the coastal mountains in India.

Because the mountains go straight into the sea, the coastal plains are better than nothing. Rio de Janeiro is truly backed by mountains and facing the sea. The city's development is extremely limited. Not only does it have no hinterland, but the port development is even more limited, because the communication between the coastal areas and the inland areas first requires crossing the mountains.

This kind of terrain is deeply felt by Jingye Shi, a student who has worked in Rio de Janeiro for more than a year. It not only leads to the development of Brazil's coastal and inland areas, but also makes Brazil's future bleak.