Answer to Question 1ANS: A
The USS Stewart was the first vessel to make a continuous profile of the ocean. They had an updated
version of the Iceberg Detector and Echo Depth Sounder, a device invented after the sinking of the
Titanic. Information can be found in the section Ocean Floor Is Mapped by Bathymetry.
Answer to Question 2ANS: C
There is a prevalence of active margins in the Pacific. These are areas associated with converging
plates and are characterized by high earthquake and volcanic activity. Recall the Pacific Ring of Fire
mentioned in Chapter 3. Information can be found in the section Continental Margins May Be Active
or Passive
Cambrian trilobite, with a shell made of calcium carbonate.
Heading for the ocean on a beach at the Pu'uhonua o Honaunau National Historical Park
Major Topographic Divisions of the North Atlantic Ocean
Satellite data on primary productivity in the equatorial Pacific Ocean
Continuous Variation in Height (Males)
A profile of the nuclear contents of a cell through the mitotic cell cycle