Precipitation in the tundra totals 150 to 250 mm a year, including melted snow. That's less than most of the world's greatest deserts! Still, the tundra is usually a wet place because the low temperatures cause evaporation of water to be slow.
In this period, Brazil came back to the two party political system. With the return of democracy, in 1986, and the establishment of the 1988 Constitution, the multiparty political system was set back and several parties were founded.
Political Geography. Brazil encompasses so much of South America that it shares borders with all South American nations except Ecuador and Chile. Brazil is divided into 26 states and a Federal District. The state of Amazonas has the largest area and the most populous is Sao Paulo.