- chaparral: a number of shrubby plants widely found in southern California that are especially adapted to dry, sunny summers and cool, wet winters
- climate: the average weather at a particular place over a period of many years
- domestic: related to the household or family
- earthquake: a shaking or movement of the earth that often happens with mountain building or other movements of the earth's crust
- ecology: the relationship that exists between organisms and their environment
- extinct: no longer in to be found or in existence
- fault: a fracture or break in the earth's crust
- geologist: a person who studies the history of the earth and its life, especially as recorded in rocks
- igneous: rocks resulting from magma or the activity of volcanoes
- landforms: a feature of the earth's surface, such as plains, plateaus, mountains, hills, valleys, etc.
- metamorphic: rocks which have been reformed by pressure, heat, or water to become more compact and crystalline
- natural resources: materials supplied by nature
- rain shadow: a region of reduced rainfall due to the presence of high mountains
- recreational: 1. relating to amusement and entertainment 2. refreshment of strength and spirits
- sedimentary: rock formed of fragments of other rocks that have been moved from its source and deposited in water, such as: shale, sandstone, or limestone. Sedimentary rock often has a layered appearance.
- species: an individual plant or animal belonging to a particular scientific group or category, with the same attributes as others of its kind
- subdivided: to separate or divide into more parts
- urbanized: a rural area which has become densely populated and has taken on the characteristics of a city
- weather: the condition of the atmosphere with relation to heat or cold, wetness or dryness, calm or storm, at a particular time and place
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