a fact or event of scientific interest that can be scientifically explained or described

the main or strongest

covering a wide area; prevalent

to carry out or accomplish by concrete measures

a climate zone that occurs as elevation increases, with its own natural vegetation and crops

refers to people of mixed indigenous and European descent

Spanish for "conqueror"; Spanish soldier who participated in conquest of indigenous peoples of Latin America

farm product grown to be sold or traded rather than used by the farm family

a blending of beliefs and practices from different religions into one faith

a great city that is made up of several large and small cities

a city that dominates a country's economy, culture, and government and in which population is concentrated; usually the capital

household made up of many generations of family members

the value of goods and services produced within a country in a year

in Mexico, a manufacturing plant owned by a foreign company

an area of a country in which trade restrictions do not apply

the loss or destruction of forests, mainly for logging or farming

technological and economic growth that does not deplete the human and natural resources of a given area

the sinking of settling of land to a lower level in response to various natural and human-caused factors

a narrow strip of land connecting two larger land areas