| A | B |
| soil exhaustion | loss in soil nutrients that results from always planting the same crop |
| favelas | huge slum areas |
| growth pole | metropolitan area given official help to strengthen its economic development |
| tannin | substance used in preparing leather, comes from the quebracho trees |
| landlocked | country completely surrounded by land and does not have access to the ocean |
| buffer state | small country that separates two larger competing countries |
| favelas are found here | Brazilian cities |
| countries that grow quebracho trees | Argentina & Paraguay |
| a landlocked country | Paraguay |
| Paraguay exports this for profit | hydroelectricity |
| agriculture and tourism are important in country | Uruguay |