an extensive group of states or countries under a single supreme authority
a feature that blocks the movement of people, products, or ideas
barrier
able to support the healthy growth of many things, especially plants
fertile
to supply water to crops through artificial means
irrigate
a union or association formed for mutual benefit
alliance
the basic structure of something
framework
surrounded by land, distant from an ocean or sea
inland
of or relating to the production, distribution, and consumption of goods and services
economic
the long-term trends in weather elements and atmospheric conditions
climate
a settlement controlled by a separate country
colony
to claim land for a nation by establishing a settlement
colonize
to enter despite opposition, especially to take control
invade
someone who buys and sells goods or services for profit
merchant
an employer or employee who helps produce goods and services
human resource
a narrow strip of land connecting two larger land areas
isthmus
an area of land surrounded by water on three sides
peninsula
related to government
political
an area claimed by a person or country through inhabitation, generally with the intent to use the land for gain
settlement
a broad statement or idea that is applied to a group of people or things
generalization
characteristic of or relating to Greek civilization in the ancient Mediterranean world
Hellenistic
a large area of flat land with few trees
plain
an object made or used by humans long ago
artifact
to favor or oppose someone or something because of certain characteristics, especially in an unfair manner
bias
an outdoor theater or performance area, often built into the side of a hill with rows of seats surrounding a central stage
amphitheater
an astronomical instrument for taking the altitude of the sun or stars which could be converted to find latitude
astrolabe