Salt Marsh And Beaches Quiz! Trivia

20 Questions | Total Attempts: 103

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Salt Marsh And Beaches Quiz! Trivia - Quiz


Questions and Answers
  • 1. 
    Why do marshes have that characteristically rotten egg odor?
    • A. 

      Decomposition uses much oxygen while releasing hydrogen sulfide. The reduced oxygen level combined with the release of hydrogen sulfide gives the marsh a rotten egg odor.

    • B. 

      Decomposition uses much carbon dioxide while releasing hydrogen sulfide. The reduced carbon dioxide level combined with the release of hydrogen sulfide gives the marsh a rotten egg odor.

    • C. 

      Decomposition uses much hydrogen while releasing carbon dioxide. The reduced hydrogen level combined with the release of carbon dioxide gives the marsh a rotten egg odor.

    • D. 

      Decomposition uses much hydrogen while releasing sulfur. The reduced hydrogen level combined with the release of sulfur gives the marsh a rotten egg odor.

  • 2. 
    Identify this hard stabilization image and what occurs as a result of its presence:
    • A. 

      It is a seawall. As as result of its presence, wave energy is redirected which enhances the erosion of both the front and sides of the wall.

    • B. 

      It is a groin. As as result of its presence, wave energy is redirected which enhances the erosion of the front of the wall.

    • C. 

      It is a jetty. As as result of its presence, wave energy is redirected which enhances the erosion of the front of the wall.

    • D. 

      It is a breakwater.

    • E. 

      Littoral current.

  • 3. 
    Identify this structure:
    • A. 

      Groin

    • B. 

      Jetty

    • C. 

      Seawall

    • D. 

      Breakers

  • 4. 
    How many miles has North Carolina barrier islands migrated to get to its present location?
    • A. 

      40 miles.

    • B. 

      30 miles.

    • C. 

      60 miles.

    • D. 

      1-2 miles.

    • E. 

      Between the swash zone (shoreface where waves break) and the dune

  • 5. 
    What is phytoplankton?
    • A. 

      A microscopic plant that organisms feed on and move with tides and currents.

    • B. 

      A microscopic animal that moves with currents and large aquatic organisms.

    • C. 

      An organism that helps decompose detritus in the marsh.

    • D. 

      An organism that scavengers feed on in the marsh.

  • 6. 
    Because it has a wide variety of plants and animal species occupying a large number of niches, the salt marsh community is one of nature's most self-sustaining ecological systems and is a valuable coastal resource. Being a self-sustaining community means:
    • A. 

      The marsh community supplies virtually all its own needs rather than being dependent on other communities.

    • B. 

      The marsh community is able to provide the nutrients for all other barrier island habitats.

    • C. 

      The marsh community is the basis of the barrier island community.

    • D. 

      The marsh community is fragile and at risk.

  • 7. 
    Water in the salt marsh has a wide range of salt content.  Why would you suppose this is so?
    • A. 

      During high tide-incoming tides replenish ocean level salinity. During low tide areas of salt marsh are exposed and may have pools of water that when evaporated leave the salt behind creating salty substrate. Evaporation is a factor in intertidal areas. Heavy rains alter the salinity making the sound less salty.

    • B. 

      During low tide-incoming tides replenish ocean level salinity. During low tide areas of salt marsh are exposed and may have pools of water that when evaporated leave the salt behind creating salty substrate. Transpiration is a factor in intertidal areas. Heavy rains alter the salinity making the sound less salty.

    • C. 

      During high tide-incoming tides replenish ocean level salinity. During high tide areas of salt marsh are exposed and may have pools of water that when evaporated leave the salt behind creating salty substrate. Evaporation is a factor in intertidal areas. Heavy rains alter the salinity making the sound less salty.

    • D. 

      During low tide-incoming tides replenish ocean level salinity. During high tide areas of salt marsh are exposed and may have pools of water that when evaporated leave the salt behind creating salty substrate. Evaporation is a factor in intertidal areas. Heavy rains alter the salinity making the sound less salty.

  • 8. 
    Where is oxygen in good supply in the marsh?
    • A. 

      Air

    • B. 

      Tide pools

    • C. 

      Tide line

    • D. 

      Substrate

  • 9. 
    Spartina alterniflora (marsh cordgrass) is the most abundant and ecologically most important large plant of the marsh. What makes it so important?
    • A. 

      Salt tolerant

    • B. 

      Grows quickly

    • C. 

      Predator tolerant

    • D. 

      Wind and wave tolerant

  • 10. 
    In the "Beaches are Moving" video these islands were shown. Identify what has happened to Assateague Island as a result of hard stabilization shown in this diagram:
    • A. 

      The installation of a jetty to stabilize the Ocean City Inlet in the 1930's has starved northern Assateague Island beaches of sand. This accelerated the landward migration of the island.

    • B. 

      Assateague Island has migrated westward more than 1,148 feet (350 m) since 1933! The installation of a seawall to stabilize the Ocean City Inlet in the 1849 starved northern Assateague Island beaches of sand. This accelerated the landward migration of the island.

    • C. 

      Assateague Island has migrated westward more than 1,148 feet (350 m) since 1933! The installation of a seawall to stabilize the Ocean City Inlet in the 1849 starved northern Assateague Island beaches of sand. This accelerated the landward migration of the island.The installation of a groin to stabilize the Ocean City Inlet in the 1849 starved northern Assateague Island beaches of sand. This accelerated the landward migration of the island.

    • D. 

      In preparation for the Civil War, a seawall was installed to stabilize the Ocean City Inlet in 1849. Since then, Assateague Island has migrated south!

  • 11. 
    Which island inlet shift expands and contracts ?
    • A. 

      Bogue Banks

    • B. 

      Topsail

    • C. 

      Oregon

    • D. 

      Bald Head

  • 12. 
    Which island inlet shifts by migrating?
    • A. 

      Bogue Banks

    • B. 

      Topsail

    • C. 

      Oregon

    • D. 

      Bald Head

  • 13. 
    Which island inlet shifts by returning ?
    • A. 

      Bogue Banks

    • B. 

      Topsail

    • C. 

      Oregon

    • D. 

      Bald Head

  • 14. 
    What are storm bars?
    • A. 

      Storm bars form as storm weather erodes the near shore sand bar and beach in preparation for a storm.

    • B. 

      Storm bars form as storm weather erodes the berm and creates a sand bar during fair weather.

    • C. 

      Storm bars form as the storm sediments overwash the island during a storm.

    • D. 

      Storm bars form as wave strength, duration and fetch expand.

  • 15. 
    What is projected to occur in the year 2100?  North Carolina has been identified as one of the three states with the highest vulnerability to sea level rise. North Carolina has 5900 sq. km of land below 1 meter in elevation, over 300 miles of beaches and more than 4,600 miles of shoreline along our sounds, coastal rivers and wetlands. According to "The Beaches are Moving",  By 2100, a 1 ft of sea level rise on North Carolina's gently sloping coastline equals approximately how many feet of shoreline retreat?
    • A. 

      1 ft of sea level rise equals 2000 feet of shoreline retreat.

    • B. 

      1 ft of sea level rise equals 6 feet of shoreline retreat.

    • C. 

      1 ft of sea level rise equals 10,000 feet of shoreline retreat.

    • D. 

      1 ft of sea level rise equals 4.6 feet of shoreline retreat.

  • 16. 
    Why are the Outer Banks so far from the mainland coast of North Carolina?
    • A. 

      With sea level rise, the mainland coastal plain receded faster than the islands are migrated landward.

    • B. 

      The Outer Banks are floating seaward due to migration.

    • C. 

      The Outer Banks are returning to their original location further out on the continental shelf.

    • D. 

      Sound waters in the basin behind the Outer Banks are filling with sand causing the islands to roll seaward.

  • 17. 
    What does this photo show about a barrier island maritime forest?
    • A. 

      That a maritime forest is found in the middle of the widest part of an island.

    • B. 

      That barrier islands are long and thin.

    • C. 

      That a dune is not found on the sound side of an island.

    • D. 

      That the island hasn't much shade from the sun.

  • 18. 
    Identify this kind of hard stabilization:
    • A. 

      Jetties.

    • B. 

      Groins.

    • C. 

      Seawalls.

    • D. 

      Breakwaters.

  • 19. 
    How is a long shore current formed?
    • A. 

      A long shore current is formed as ordinary waves retreat from the shoreline slope causing them to angle towards the dunes creating a current.

    • B. 

      A long shore current is formed as overwash waves hit the shoreline slope causing them to angle inward creating a current.

    • C. 

      A long shore current is formed as parallel waves hit the beach causing a current to form along the shore.

    • D. 

      A long shore current is formed as ordinary waves hit the shoreline slope causing them to angle away creating a current.

  • 20. 
    What does this arrow identify?
    • A. 

      Longshore current.

    • B. 

      Tidal current.

    • C. 

      Ebb tidal delta.

    • D. 

      Flood tidal delta.

    • E. 

      Littoral current.

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