The name Brazil comes from Pau Brasil. There are around 145 million people living in Brazil, most of them near the coast. The population is growing rapidly and half of all Brazilians are under the age of 20. By the end of the century, it is estimated that Brazil's population will have reached 180 million. Brazil borders on ten other Latin American countries. Most of the northern part of Brazil is low-lying and veined by the mighty Amazon River and its tributaries. The Amazon is the largest river in the world. …