North America
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A 200 mile buffer zone that extends into the territorial waters surrounding a country and is prescribed by the United Nations Convention on the Law of the Sea over which a country has certain rights.

The principle of political or commercial cooperation between the US and the countries of South America, as well as those in Central America and the Caribbean.

A tectonic plate boundary that runs from Vancouver Island to Northern California.

Generally, the name for a very large city region. More specifically, or the name given to the extended urban region that extends along the eastern seaboard of the USA from Boston to Washington DC.

Rapid growth of algae in lakes often due to the amount of run off high in phosphates and nitrogen from farms and lawns.

The 750-mile active zone between he Pacific and North American plates that runs from San Francisco down to southern California.

An area where waters drains from and flows into a river or a number of tributaries.

The region stretching from California to Florida associates with arm weather, bright sunshine and economic growth.

In general refers to any society dominated by settlers from elsewhere. More specifically refers to societies such as the Australia, Canada, and US that were populated by settlers form Europe.

An area of volcanic activity. Not caused by plate tectonics but by plumes from the mantle.

A storm of violently rotating wind.

A former industrial site affected by environmental contamination.

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