Areas of Earths sea floor can create new crust because ____.
a. continental collisions raise mountains continuously higher
b. earthquakes consume new sea floor at transform zones
c. hot spots cause crustal material to sink into the mantle
d. continental plates rise higher through isostacy
e. crust is consumed in subduction zones
Question 2
Earths crust is divided into ____.
a. dozens of large plates and a much smaller number of small plates
b. about a dozen large plates and about an equal number of small plates
c. a small number of large plates and dozens of small plates
d. five large oceanic plates and an equal number of small plates
e. dozens of small plates
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