5 Written questions
5 Matching questions
- Oceanic Zone
- Intertidal Zone
- Benthic Zone
- Reverse Osmosis Desalination
- Sublittoral Zone
- a The bottom region of oceans and bodies of fresh water.
- b The shallowest benthic zone that lies between the low-tide and high-tide lines.
- c 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.
- 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.
- e Extends into the deep waters beyond the continental shelf.
5 Multiple choice questions
- A process of removing salt from ocean water.
- A floating layer of sea ice that completely covers an area of the ocean surface.
- Dissolved solids that make up about 3.5% of the mass of ocean water. These dissolved solids give the ocean its salty taste.
- A method of desalination where water is frozen. Then the first ice crystals that form do not contain salt. The ice can be removed and melted to obtain fresh water.
- Elements that exist in very small amounts.
ex: gold, zinc, and phosphorus.
5 True/False questions
Plankton → The mass of mostly microscopic organisms that float or drift freely in the waters of aquatic (freshwater and marine) environments.
Nekton → The mass of mostly microscopic organisms that float or drift freely in the waters of aquatic (freshwater and marine) environments.
Distillation → A process of removing salt from ocean water.
Aquaculture → A floating layer of sea ice that completely covers an area of the ocean surface.
Thermocline → A layer in a body of water in which water temperature drops with increased depth faster than it does in other layers.