Europe
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Eroded by glaciation, these valleys have very steep sides.

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

A term used to describe the vast metropolitan area that encompasses most of Europe.

The cultural development in 14th century Europe, centered in Italy, that drew upon classical learning.

Money that leaves other areas of the world seeking a location with strong secrecy laws where money can be hidden and invested without scrutiny.

Glacial deposits of rock and sediment.

A low mound of compacted earth shaped by glacial action.

A volcanic crater caused by the destruction of the cone during violent explosions.

A rich maritime trading empire centered on Venice that had port cities throughout the Adriatic, Eastern Mediterranean and Black Sea. Lasted from the 8th to the 18th century with its greatest power round 1500.

A single territorial unit created in 1985 that allows for the freedom of movement and capital mobility in Europe.

The dominant social system in medieval Europe, in which the nobility held lands that the peasantry were obliged to work.

A type of economic system that is controlled and planned by the central government.

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