2.  Why is seafloor geology simpler then continental geology?
 
 
 
 
 
 

 
 3.  What variables must be know in order to determine the position of a moving submarine?
 
 
 
 
 
 

 
 4.  Why is the triple junction a good example of seafloor spreading?
 
 
 
 
 
 

 
 
5. Why do most volcanoes appear as chains of mountains?  What would explain volcanoes that are not part of a chain?  How can gravity maps and satellite data be used to explore these problems?