Chapter 20 - Ocean Water

Raising aquatic plants and animals for human consumption is

The two principal gasses dissolved in ocean water are

What term describes the mass of mostly microscopic organisms that float or drift freely?

What term best describes the amount of dissolved salts in a given amount of liquid?

The process of removing salt from ocean water is called

What is the movement of deep, cold, and nutrient-rich water to the surface called?

What is the term for organisms that live at the bottom of the ocean?

Plankton are the foundation of life in the ocean because they

Oceans are a carbon sink. How much more carbon is in the ocean than in the atmosphere?

What is the region of the ocean above the benthic zone?

By studying variations in color within the ocean, scientist can determine the presence of

As the temperature changes, the ocean and atmosphere are continuously exchanging

The growth of the world's population has reduced the ocean's ability to

What is the bottom of the oceans called?

What is the ratio of mass to volume of a substance?

What are organisms that swim actively, independent of currents?

What term is used for a floating layer of sea ice completely covering an area of ocean surface?

Trace elements in the ocean are those minerals that are

Marine organisms are essential to maintaining chemical balance in the ocean because they

Which layer in the water has a temperature drop per depth faster than any other layer?