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
Walrus Ivory masks made by Yupik in Alaska
Profile of the Eurasian red squirrel in grey winter coat
Illustration of an embolus floating in an artery. The embolus will become lodged in a blood vessel t
The fibers in silk cloth and in a spider web are made up of the protein fibroin
Continuous, Absorption Line, and Emission Line Spectra
Major Topographic Divisions of the North Atlantic Ocean