Great plenty; quantity that is more than enough.

A small, steep hill that has a flat top and stands alone

A person, group, or country that believes in a system in which most or all property is owned by the state and is shared by all.

Being in actual contact; touching along a boundary or at a point.

A divide separating streams that flow to opposite sides of a continent.

A group of mountain ranges, often consisting of a number of parallel chains; Usually the largest group on a continent.

A large piece of land, usually with a large house on it.

An addition.

A break in the earth's crust, with the mass of rock on one side of the break pushed up, down, or sideways.

A union by agreement.

What is handed down from one generation to the next.

The line where the earth and the sky seem to meet.

The part of a canal in which the level of the water can be changed by letting water in or out, to raise or lower ships.

The main part of a continent or country, not including islands or small peninsulas.

A very large city.

A high, steep hill that has a flat top and stands alone.

To move from one place to settle in another.

A waterway around mainland North America through the northwest part of the continent

To take possession of, as by conquest.

One of the main divisions of a country.

A row or line of mountains.

A person or place from which something comes or is obtained.

To measure for size, shape, position, or boundaries.

A commotion; disturbance; disorder.

Not lived in; without people who live there.

economic wide results of individual behavior

growing of plants or animals in freshwater or marine ecosystems

underground water source

a group of islands clustered together in a large body of water

of two languages or cultures

underground area usually created when limestone is dissolved

responsible use and management of natural resources

money owned or due

failure to fulfill and obligation monetarily

all of the land drained by a river and the streams that flow into that river

area where rivers drop from high elevations to coastal plains

shortage of food that results in people dying of starvation

a system of government where power is shared between two levels

the integration of world economies or cultures

the monetary value of all finished goods and services in a country

a severe, whirling storm that forms over the ocean in tropical regions

native; originally found in its current location

purchase of goods used to create more wealth

thin strip of land that connects two larger land masses

the principal land mass of a continent or country (excludes islands and peninsulas)

on or near an ocean or sea

heavily populated urban area that may include one or more cities

of many cultures

town, city, or village that is generally run by a mayor or council

a good or service required for survival

group of people who move from one place to another

removing fish from an area at a rate faster than they can reproduce

long, thin strip of land that projects from a larger area

a land mass surrounded by water on three sides

per person

permanently frozen soil beneath the surface in polar and near-polar areas

transfer ownership from the government to the private sector

the political division used in Canada and some other countries

area that receives less precipitation due to its location on the leeward side of a mountain

government system under which the people elect leaders to act as their agents in making laws

movement of the earth caused by shifting of tectonic plates

depression in the land generally caused when rain dissolves limestone soils

a nation with the economic and political strength to influence global events

large wave caused by an underwater earthquake or volcano

percentage of people in a country willing and looking for work but currently unemployed

good or service desired by a person but not required for survival