Coastal Geomorphology: Shoreline and Coastal Environments
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Questions and Answers

What is the vertical distance from the trough to the crest of a wave called?

  • Wave Height (correct)
  • Whitecaps
  • Wavelength
  • Wave Period
  • Which term refers to the depth at which energy rapidly diminishes below the surface of circular wave motion?

  • Swash
  • Wave Base (correct)
  • Trough
  • Crest
  • What causes changes in water levels along coasts due to gravitational interaction between celestial bodies?

  • Wind
  • Circular Orbital Motion
  • Tides (correct)
  • Whitecaps
  • During which type of tides are the high tides higher than normal and occur every 14–75 days when the Moon and the Sun are aligned?

    <p>Spring tides (B)</p> Signup and view all the answers

    What is the turbulent water created by breaking waves known as?

    <p>Surf (A)</p> Signup and view all the answers

    Which part of a wave represents the top part?

    <p>Crest (A)</p> Signup and view all the answers

    What is the area between the lowest tide level and the highest elevation on land affected by storm waves called?

    <p>Shore (D)</p> Signup and view all the answers

    Which coastal landform is characterized by a relatively flat area composed of sand adjacent to coastal dunes or cliffs?

    <p>Berm (C)</p> Signup and view all the answers

    What is the wet sloping surface from the berm to the shoreline called?

    <p>Beach Face (D)</p> Signup and view all the answers

    Which zone is seaward of the nearshore zone?

    <p>Offshore Zone (B)</p> Signup and view all the answers

    What term refers to energy travelling along the interface between the ocean and atmosphere?

    <p>Waves (A)</p> Signup and view all the answers

    Which area is landward of the high-tide shoreline and is dry, only affected by waves during storms?

    <p>Backshore (C)</p> Signup and view all the answers

    What type of sediment is mostly found on pebble beaches?

    <p>Pebbles (C)</p> Signup and view all the answers

    Where are sand beaches most prevalent?

    <p>Along tropical coasts (D)</p> Signup and view all the answers

    What is the main source of sediment for coastal sand dunes?

    <p>Beach sediment blown by wind (D)</p> Signup and view all the answers

    'Estuaries are transition zones between which two bodies of water?'

    <p>Rivers and oceans (D)</p> Signup and view all the answers

    'Where are tidal flats exposed?'

    <p>At low tide (A)</p> Signup and view all the answers

    'What is the main reason why sand beaches are prevalent along tropical coasts?'

    <p>River sediment deposits (B)</p> Signup and view all the answers

    What environmental factors contribute to the gradual breakdown of coastal rocks and landforms?

    <p>Wind, rain, and sunlight (D)</p> Signup and view all the answers

    Which coastal process poses challenges to coastal areas due to climate change?

    <p>Thermal expansion of seawater (A)</p> Signup and view all the answers

    Where is limestone shoreline weathering observed at?

    <p>Asan Point, War in the Pacific National Historical Park, Guam (A)</p> Signup and view all the answers

    What historic resources are threatened due to sea level rise in the Pacific islands?

    <p>Fishponds (A)</p> Signup and view all the answers

    Which type of environment is most significantly impacted by saltwater inundation, according to the text?

    <p>Historic masonry structures (C)</p> Signup and view all the answers

    What are beaches considered as in terms of sediment accumulation along coasts?

    <p>Most significant accumulations of sediments (A)</p> Signup and view all the answers

    What drives ocean currents?

    <p>Temperature gradients and the Earth's rotation (A)</p> Signup and view all the answers

    Which type of currents are produced by waves near the shore?

    <p>Longshore currents (A)</p> Signup and view all the answers

    What is the main cause of coastal erosion?

    <p>Human activities and climate change (D)</p> Signup and view all the answers

    What type of landforms can be created due to coastal deposition?

    <p>Spits and barrier islands (D)</p> Signup and view all the answers

    Which currents flow perpendicularly to the beach fed by longshore currents?

    <p>Rip currents (A)</p> Signup and view all the answers

    How are rip currents formed?

    <p>By longshore currents feeding into them (B)</p> Signup and view all the answers

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