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5 Written questions

5 Matching questions

  1. Sea Salts
  2. Neritic Zone
  3. Salinity
  4. Pelagic Zone
  5. Oceanic Zone
  1. a 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%.
  2. b The area of the pelagic zone above the continental shelves. Has abundant sunlight, moderate temperatures, and relatively low water pressure.
  3. c Dissolved solids that make up about 3.5% of the mass of ocean water. These dissolved solids give the ocean its salty taste.
  4. d Extends into the deep waters beyond the continental shelf.
  5. e The region of an ocean or body of fresh water above the benthic zone.

5 Multiple choice questions

  1. 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.
  2. Has no sunlight because it begins at a depth of 4,000 meters and extends to a depth of 6,000 meters.
    organisms that live there: sponges and worms
  3. The ratio of the mass of a substance to the volume of the substance; commonly expressed as grams per cubic centimeter for solids and liquids and as grams per liter for gases.
  4. A process of removing salt from ocean water.
  5. A floating layer of sea ice that completely covers an area of the ocean surface.

5 True/False questions

  1. Benthic ZoneThe bottom region of oceans and bodies of fresh water.


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


  3. UpwellingThe movement of deep, cold, and nutrient-rich water to the surface.


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


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