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Mapping the Earth

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  • Where is the prime meridian?
    A line that runs from the north pole to the south pole through Greenwhich, UK.
  • What do the little "teeth" marks (hachures) mean on a topographic map?
    They mean the land is getting lower.
  • How many time zones are there in the world?
    24
  • What latitude?
    the angular distance north or south from the equator, expressed in degrees
  • Approximately how many miles is 1 degree is one of latitude or longitude?
    69 miles
  • Contour lines often form a "v" formation next to a river. When they do this, the "V" formation points....
    Uphill
  • What technology do scientists use to map the ocean floor?
    Sonar
  • When contour lines are closer, the ground is.....
    Steeper
  • When giving coordinates, which one, longitude or latitude is given first?
    Latitude
  • True or False: Contour lines never split.
    True
  • Lines of latitude are also known as...
    Parallels
  • What is the term for the height of a point on Earth's surface above (or below) sea level?
    Elevation
  • True or False: The North Geographic Pole and the North Magnetic Pole are in the same location?
    False
  • What is topography?
    The size and shape of the land surface features of a region, including its relief
  • What is the prime meridian?
    The line decided to be 0 degrees longitude.
  • Approximately how many miles is 1 degree is one of latitude or longitude?
    69 miles
  • What is the international date line?
    The 180 degree line of longitude across which you jump forward or back 24 hrs
  • On a contour map, what is the term for the change in elevation between each line?
    The contour interval.
  • Lines of Longitude are also known as...
    Meridians
  • What is longitude?
    the angular distance east or west from the prime meridian.
  • Any circle that cuts the earth into a perfect half is known as a....
    Great Circle
  • There are many ways to display a round earth on a flat paper. These are called map p_______.
    Projections
  • True or False: Contour Lines never cross or just stop.
    True
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