The Amazon lowlands are widest along the japanese foundation with the Andes. They narrow toward the east until eventually, downstream of Manaus, just a slim ribbon of per year flooded plains ( For approximately the following three hundred a long time, the Portuguese carved out the boundaries for existing-day Brazil https://job.thefishbowled.com/finding-the-scoop-machine-doctor-centre-2021-3869553971751359687