North America
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Seasonal migrants who leave cold regions in the winter months for warmer climes.

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

Hazards caused by human action.

A trade union between Canada, Mexico and the USA.

Glacial deposits of rock and sediment.

A segment of the economy that is made up of jobs and services performed as opposed to goods produced.

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

The region of the North East and Midwest associated with declining manufacturing sector. Also sometimes known as the Frostbelt.

An agreement between countries that typically results in reduced barriers to trade and investment flows between the countries. Examples include NAFTA and the TPP.

Narrow finger-like lakes formed by glacial action. Good examples are found in Finger Lakes region in New York State.

The indigenous peoples of Canada who lived south of the Arctic Circle.

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

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