1. Why do less dense plate ride over more dense plates in an oceanic-continental collision?
 
 
 
 
 
 

 
2. What are some other ways you can think of to measure the sea floor?
 
 
 
 

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3. What are five uses for satellite altimeter data?  Can you think of other ways this technology can be used?
 
 
 
 
 
 

 
 
4. How are high resolution images made?
 
 
 
 
 
 
 

 
5. Why are gravity maps the best maps to use for reconnaissance of the sea floor?