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5 Written questions

5 Matching questions

  1. Desalination
  2. Intertidal Zone
  3. Thermocline
  4. Sublittoral Zone
  5. Pack Ice
  1. a The shallowest benthic zone that lies between the low-tide and high-tide lines.
  2. b A layer in a body of water in which water temperature drops with increased depth faster than it does in other layers.
  3. c A process of removing salt from ocean water.
  4. d A floating layer of sea ice that completely covers an area of the ocean surface.
  5. e The shallow benthic zone that most organisms live in; located on the continental shelves and is populated by organisms such as sea stars, brittle stars, and sea lilies.

5 Multiple choice questions

  1. The movement of deep, cold, and nutrient-rich water to the surface.
  2. Elements that exist in very small amounts.
    ex: gold, zinc, and phosphorus.
  3. Microscopic plants in the ocean that provide food to many of the ocean's organisms.
  4. A measure of the amount of dissolved salts in a given amount of liquid. It can be written as salinity = 35 parts per thousand, or 35%.
  5. Organisms that live at the bottom of oceans or bodies of fresh water.

5 True/False questions

  1. DensityOrganisms that live at the bottom of oceans or bodies of fresh water.


  2. Bathyal ZoneThe bottom region of oceans and bodies of fresh water.


  3. AquacultureThe raising of aquatic plants and animals for human use or consumption.


  4. PlanktonAll organisms that swim actively in open water, independent of currents


  5. Neritic ZoneThe area of the pelagic zone above the continental shelves. Has abundant sunlight, moderate temperatures, and relatively low water pressure.