North America

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

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

Occurred when European colonists came to the New World and brought diseases that killed millions of indigenous people.

Areas of environmental contamination. Some of the most polluted sites in the US designated for clean up.

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.

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

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

Goods that come from agriculture, forestry, mining, and fishing.

The movement that occurred between 1916 and 1970 of almost 6 million Africa Americans from the Deep South to cities in the North and West of the USA.

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

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

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.