A
71%
What percentage of the earth's surface is covered by oceans?
Pacific
Which ocean basin covers the largest percentage of the earth's surface?
Geoid
Oceanic Trenches
What is an island arc most associated with?
A volcano or a seamount collapsed
Sodium Chloride
Oxygen
Organisms take minerals from the seawater and then the minerals settle out of the water forming sediments.
Where do most minerals go?
Seawater temperature near the ocean bottom.
Where is it in the ocean that the water temperature doesn't vary much?
Temperature INCREASES, pressure DECREASES, and density DECREASES.
The same speed as air.
How fast does sound travel in seawater?
Intertidal zone
Littoral Zone
In which zone do organisms live that is between the low tide mark and the edge of the continental shelf?
Benthic organisms
What are organisms called that are attached to or live on the bottom of the ocean?
Cyanobacteria
What is the most important source of fixed nitrogen for marine organisms?
Oceans of the world
What is divided up into five completely separate basins?
The "mean" sea level.
What is slowly rising in most locations around the world?
Seawater
What has a lower freezing point than fresh water?
The near-shore littoral and open ocean photic zones.
What zones of the ocean are in the same depth band?
Marine scientist
What is an oceanographer?
Seas
What are sections of oceans called that are usually surrounded by land?
Local sea level
Continental Shelf
What is the shallow, submerged edge of a continent called?
Coral reefs
What are underwater ridges of rocklike structures that are formed by organisms that support a large variety of life?