Defined as a metropolitan area with a total population in excess of 10 million people.
A narrow strip of land connecting two larger land areas usually with waterforms on either side.
An isthmus or wider land connection between otherwise separate areas, which allows terrestrialanimals and plants to cross over and colonise new lands.
In west-central South America, where the Andes are at their widest, is the most extensive area of high plateau on earth outside of Tibet.
A dense equatorial forest, esp. in the Amazon basin, characterized by tall broad-leaved evergreen trees, epiphytes, lianas, etc.
A vast tropical grassland plain situated at the east of the Andes in northwestern South America (Colombia and Venezuela). Its main river is the Orinoco, which forms part of the border between Colombia and Venezuela and is the major river system of Venezuela.
The fertile South American lowlands that include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, and Córdoba, most of Uruguay, and the State of Rio Grande do Sul, in the southernmost end of Brazil covering more than 750,000 km2 (289,577 sq mi).
A climate pattern that occurs across the tropical Pacific Ocean on average every five years, but over a period which varies from three to seven years, and is therefore, widely and significantly, known as "quasi-periodic."
A process whereby the government promotes the use of communal land shared by the people of the community.
Refers to people of mixed European and Amerindian ancestry.
Denotes a person with one white parent and one black parent or a person who has both black ancestry and white ancestry.
Used to identify individuals in the Americas who are of mixed African and Amerindian ancestry.
A site of innovation from which basic ideas, materials, and technology diffuse to many cultures.