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Study Guide Answers

1.     The world's oceans cover approximately ________ percent of the earth's surface.
     70
2.     The term "sea" refers to a body of water that is ________________ [smaller/larger] than an ocean.
     smaller
3.     What are the world's three largest oceans?
     What are the world's three largest oceans?
4.     The word, ________________ , refers to a narrow water passage between bodies of land.
     strait
5.     What is a bay? Are the terms "bay" and "harbor" synonymous?
     localized indentation of a coastline; no
6.     The word, _________________ [sound/moraine/gulf], is sometimes applied to broad straits and large bays.
     sound
7.     Coastlines are constantly changing due to the action of waves, currents, and tides. True or false?
     true
8.     _______________ forces are forces generated by the movement of the earth's crust.
     Tectonic
9.     Emergent coastlines originate underwater. True or false?
      true
10.     A ___________________ [eustatic/submergent] coastline occurs when sea water rises relative to the land and floods low-lying areas.
     submergent
11.     A drowned river mouth is called an estuary. True or false?
      true
12.     Fjord coasts are formed by ___________________ .
     glaciers
13.     Rivers with heavy loads of sediment can build up plains of alluvial deposits called ____________ [moraines/deltas/rias].
     deltas
14.     Is it possible for a coastline to be expanded? If so, how?
     yes; lava and marine organisms can help expand coastlines
15.     An atoll is a ________________ [reef/lagoon/moraine].
     reef
16.     Give a brief description of tides and explain how they occur.
     discussion
© Educational Video Network, Inc. 2005 - www.evndirect.com
Your leading source for curriculum-based educational videos and DVDs.