Geo terms

Geography
Acid Rain
The rain that can damage the environment because it contains acid from factory smoke and car exhaust.
Centrifugal Force
A force that divides people and countries.
Centripetal Force
A force that unites people and countries.
Common Market
A group of countries that acts as a single market, without trade barriers between member countries.
Demography
The study of human populations, including how they change due to births, deaths, aging, and migration.
Dependency Ratio
The number of old and young dependents who don’t work, compared to the working age population.
Erosion
The gradual wearing away of earths surface by the action of wind, water, ice, and gravity.
Ethnic Group
A group of people in a country who share a unique culture and identity.
Glaciation
The creation and movement of glaciers.
Life Expectancy
The average age a person in a given population is expected to live.
Nation
A large group of people who share a common history and culture.
Nation-State
An independent state, or country, whose people mostly share a common identity.
Nationalism
Feelings of loyalty towards ones nation or ethnic group.
Nuclear Radiation
A form of energy that comes from nuclear reactions. Radiation has no smell or taste, but it can be very harmful to living things.
Physical Processes
Natural forces that change earth’s physical features, including forces that build up and wear down earth’s surface.
Replacement Rate
The total fertility rate needed for a population to replace itself.
River System
A river and all the streams that it flows into.
State
A political unit that controls a particular territory.
Supranational Cooperation
A form of international cooperation in which countries give up some control of their affairs as they work together to achieve shared goals.
Tectonic Movement
The movement of plates below earth’s surface.
Total Fertility Rate
The average number of children a woman in a given population will have in her life time.
Transboundary Pollution
Pollution that starts in one country and crosses boundaries into another country.
Volcanic Activity
The formation and eruption of volcanoes.

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