Q4L1

• Biodiversity


  The variety of life forms in the world or in a particular habitat or ecosystem
• Weathering


  The breaking down of rocks into smaller pieces by natural processes
• Chemical weathering

  The process of breaking down rocks by changing their chemical composition
• Physical weathering

  The process of breaking down rocks without changing their chemical composition
• Conserve

  To preserve, or to avoid wasteful use
• Coordinates


  Numbers measured with respect to a system of lines or some other fixed reference
• Coordinate system


  A way of locating points by labeling them coordinates
• Equator


  The imaginary line circling the Earth halfway between the north and south poles
• Erosion


  The movement of weathered material downslope under the influence of gravity
• Latitude

  Imaginary lines on a map or a globe that measure distances in degrees north or south of the Equator. It extends horizontally, from east to west on a globe
• Longitude

  Imaginary lines on a map or globe that measure distance in degrees east or west of the prime meridian. It extends vertically, from pole to pole on a globe
• Mineral

  A naturally occurring, inorganic, crystalline solid with a definite internal structure and chemical composition
• Natural resources

  Materials or substances such as minerals, forests, water, and fertile land that occur in nature and can be used for economic gain
• Renewable resources


  Organic natural resources which can be replenished
• Nonrenewable resources


  Natural and finite resources that cannot be replenished
• Parallels


  The circles formed by latitude lines
• Prime meridian


  The great circle on the Earth's surface passing through the north and south poles, which is considered 0-degree longitude. It passes through Greenwich and England and is used as a reference point for measuring longitude east and west
• Rocks


  Consolidated mixtures of minerals
• Sustainability


  The ability to keep in existence or maintenance. 
• Vegetation


  Ground covered by plants
• Watershed


  The land area from which surface runoff drains into a body of water. Also called a drainage basin.