In the Cenozoic, the western margin of North America ____
a. changed from a subduction zone to a transform boundary
b. changed from a transform boundary to a subduction zone
c. changed from a subduction zone to a passive margin
d. changed from a subduction zone to an divergent zone
e. remained stable and unchanged
a
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The viscosity of different types of magma is controlled by the peridotite content
a. True b. False
Which of the following is the correct order of priorities in the R,S system?
A) alkyl > amino > hydroxyl > thiol B) alkyl > hydroxyl > amino > thiol C) thiol > amino > hydroxyl > alkyl D) thiol > hydroxyl > amino > alkyl
Wind
?
?
Which kind of wind is depicted?
A. upper-air B. surface-level