Answer to Question #102541 in Regional geography for SHUBHREET KAUR BRAR

Question #102541
define physiographic region. List the 7 physiographic regions described in the textbook and describe the basic physical geography of each
1
Expert's answer
2020-02-10T08:20:47-0500

Physiographic region is a system of territorial division of the earth's surface, based on the identification and study of a system of subordinate natural regions that have internal unity and unique individual features of nature.

There may be following 7 physiographic regions:

  • Appalachian (two divisions of the range, the Blue Ridge and the Valley and Ridge, are composed of narrow, rocky formations that distinguish the mountains from surrounding valleys)
  • Atlantic Plain (there are no mountains in this region of North America. It is composed primarily of sedimentary rock and unlithified sediments and is primarily used for agriculture. )
  • Canadian Shield (containing a variety of small lakes, thin layers of soil and rolling hills. Lakes are \the result of glacial erosion during the last ice age)
  • Interior Plains (with shallow inland seas. Sediments from the shield and the Rocky Mountains were deposited in these seas over millions of years)
  • Pacific Coast Ranges (with Pacific Ocean, as a natural western border, and the coastal mountain ranges forming the eastern border)
  • Baja California Peninsula (with four desert areas, although it is surrounded by waters from three sides)
  • Andean Mountain System (Longest mountain range in the world and the highest outside of Asia with volcanoes)


Sources:

Encyclopedia Britannica, The Canadian Encyclopedia, USA Today, Wikipedia.


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