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5 Written questions

5 Matching questions

  1. Upwelling
  2. Nodules
  3. Reverse Osmosis Desalination
  4. Nekton
  5. Sublittoral Zone
  1. a 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.
  2. b Potato-shaped lumps of minerals that are found on the abyssal floor of the ocean.
  3. c All organisms that swim actively in open water, independent of currents
  4. d 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. e The movement of deep, cold, and nutrient-rich water to the surface.

5 Multiple choice questions

  1. Microscopic plants in the ocean that provide food to many of the ocean's organisms.
  2. A floating layer of sea ice that completely covers an area of the ocean surface.
  3. Organisms that live at the bottom of oceans or bodies of fresh water.
  4. The shallowest benthic zone that lies between the low-tide and high-tide lines.
  5. The bottom region of oceans and bodies of fresh water.

5 True/False questions

  1. DesalinationA process of removing salt from ocean water.


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


  3. DistillationA 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.


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


  5. Neritic ZoneThe region of an ocean or body of fresh water above the benthic zone.