quality:correction, stylistic:tone, linguistic:paraphrasing
Brazil

Brazil, being a country of continental dimensions, presents great internal regional differences.While its 4 southernmost states (Paraná, Rio Grande do Sul, Santa Catarina and São Paulo) share characteristics with Argentina, and Uruguay (high standard of living, subtropical and temperate climate, high levels of industrialization and strong European ethnic component due to immigration), the other states are more similar to the other South American countries in these issues.

In relation to latitudes the 4 southernmost Brazilian states are located in latitudes in the southern hemisphere that would correspond in the northern hemisphere to northern Mexico, the American state of Florida and the coastal regions of the other southern states of the United States, North Africa, the Arabian peninsula, southern Iran, northern India and the southern China.

For these reasons, Brazil is included in some meanings when speaking in Southern Cone, but excluded in others.

When the definition is not limited to entire countries, the states of the South Region and the state of São Paulo are generally included.