Which of the following is commonly expected near a

54.
Which of the following is commonly expected near a “textbook” subduction zone (that is, near a
subduction zone that is so perfect and free of confusing complications that you would use it in a textbook
to teach students)?
A) Pull-apart earthquakes and faults.
B) Slide-past (or transform, with horizontal but not vertical movement) earthquakes and faults.
C) Basaltic hot-spot-type volcanoes.
D) Andesitic stratovolcanoes.
E) Basaltic mid-ocean-ridge-type volcanoes.
55.
The floor of Death Valley is about two miles lower than the mountain peaks around it. How did this
happen?
56.
Geophysical evidence indicates that convection is occurring in the Earth’s mantle. What is the most likely
physical explanation for why convection can occur in the mantle?