Study Guide Questions Flashcards
What are the two main elements in the ocean?
sodium and chloride
How is the continental margin divided into the shelf slope and rise?
By the depth of the water
What are benthos?
Organisms that live on the bottom of a sea or ocean.
What does the deep ocean basin consist of?
The abyssal plain, mid ocean ridges, rift valleys, ocean trenches, and seamounts.
What is salinity?
A measure of the amount of salt in a given amount of liquids.
What are and how do the sonar waves work?
They are waves that scientists use to determine the depth of the ocean. The longer it takes a wave to hit the bottom and come up again, the deeper the ocean depth.
What is nekton?
All organisms that swim actively in open waters, independent of the current.
What do engineers drill for in the ocean?
Oil
What is non-point source pollution?
Pollution that comes from many sources rather than from a single specific site.
What are renewable resources?
Resources that can be replaced in time, after being used.
What is desalination?
The process of removing salt from water.
What does the U.S Marine Protection, Research, and Sanctuaries act do?
It is an act that prohibits dumping of material that would cause damage to human health and welfare, marine environment and ecosystems, and businesses that depend on the ocean.
What is the neritic zone?
It is part of the pelagic environment, it has the largest concentration of marine life, and it covers the entire continental shelf.
What is plankton?
Microscopic organisms that float and drift freely in fresh water and marine environments.
What is nekton?
All organisms that swim actively in open waters, independent of currents.
