Key+words+and+Definitions+2

The following list of keywords can be used throughout your study of this topic:

 Keywords and their definitions taken from GeoActive 2 - Stage 5 Geography, written by John Paine and Susan Bliss.
 * **Megacities: **cities with more than ten million people.
 * **Minute: **each degree of latitude or longitude can be divided into 60 smaller segments called minutes.
 * **Prime Meridian: **the most important line of longitude. It runs through the Greenwich Observatory in England. All other lines of longitude are either east or west of it.
 * **Sacred sites: **places where important events in the Dreaming took place.
 * **Sediment: **material desposited by a stream or other body of water.
 * **Tectonic plates: **<span style="font-family: 'Comic Sans MS',cursive;">the various slow-moving plates that make up the Earth's crust. Volcanoes and earthquakes often occur at the edges of plates.
 * **<span style="font-family: 'Comic Sans MS',cursive;">Tectonic processes: **<span style="font-family: 'Comic Sans MS',cursive;">activities below the Earth's surface that cause the breaking and bending of the Earth's crust.
 * **<span style="font-family: 'Comic Sans MS',cursive;">Time zones: **<span style="font-family: 'Comic Sans MS',cursive;">the 24 zones of different time into which the Earth is divided.
 * **<span style="font-family: 'Comic Sans MS',cursive;">Topography: **<span style="font-family: 'Comic Sans MS',cursive;">physical features of an area of land - its height and shape.
 * **<span style="font-family: 'Comic Sans MS',cursive;">Weathering: **<span style="font-family: 'Comic Sans MS',cursive;">the breakdown of bare rock by water and temperature changes.