1.

________ represent the features of both emergence and submergence.1. Compound coasts2. Neutral coasts3. Simple coasts4. Retrograded coasts

Answer» Correct Answer - Option 1 : Compound coasts

The correct answer is Compound coasts.

  • The boundary between the coast and the shore is known as the coastline; it marks the seaward limit of the coast.
  • The outline of the coast may be modified by sea waves.
  • Submergence of the shoreline may take place because of a rise in sea level or a downward adjustment of the land surface; from a geometrical point of view, the two are indistinguishable.
  • According to D.W. Johnson, coastlines can be divided into the following classes:
    • Coastline of Emergence
    • Coastline of Submergence
    • Neutral coastline
    • Compound coastline
    • Fault coastline
  • This classification has two bases:
    • The change of levels, i.e., if sea level falls, the shores emerge,
    • The nature of shorelines, because it is necessary to know the nature of seashore before emergence and submergence, whether the shore was upland or downland, for instance.
  • Compound Coastlines:
    • Such coastlines show the forms of two of the previous classes combined, for example, submergence followed by emergence or vice versa. The coastlines of Norway and Sweden are examples of compound coastlines. Hence, Option 1 is correct.


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