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5 Written questions

5 Matching questions

  1. Thermocline
  2. Neritic Zone
  3. Salinity
  4. Distillation
  5. Oceanic Zone
  1. a A method of desalination where ocean water is heated to remove salt. Heat causes liquid water to evaporate and leave dissolved salts behind. When the water vapor condenses, the result is pure fresh water.
  2. b 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%.
  3. c Extends into the deep waters beyond the continental shelf.
  4. d A layer in a body of water in which water temperature drops with increased depth faster than it does in other layers.
  5. e The area of the pelagic zone above the continental shelves. Has abundant sunlight, moderate temperatures, and relatively low water pressure.

5 Multiple choice questions

  1. The region of an ocean or body of fresh water above the benthic zone.
  2. All organisms that swim actively in open water, independent of currents
  3. Elements that exist in very small amounts.
    ex: gold, zinc, and phosphorus.
  4. A popular method for desalinating ocean water. It includes the use of special membranes that allow water under high pressure to pass through and that block the dissolved salts.
  5. 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 True/False questions

  1. Sea SaltsA 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%.

          

  2. BenthosAll organisms that swim actively in open water, independent of currents

          

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

          

  4. PhytoplanktonMicroscopic plants in the ocean that provide food to many of the ocean's organisms.

          

  5. Abyssal ZoneBegins at the continental slope and extends to a depth of 4,000 meters.
    animals that live there: octopi, sea stars, and brachiopods.

          

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