Which process creates island chains with active volcanoes at one end??
a. ?Asthenospheric convection moves a magma plume under a stationary plate.
b. ?Magma plumes form on the Earth’s outer core and rotate under a stationary plate.
c. ?Divergent boundaries move plates away from a stationary magma plume.
d. ?Convergent boundaries move the location of melting crust under a stationary plate.
e. ?Crustal plates move over a stationary magma plume.
ANSWER: e
You might also like to view...
Nearly all remaining active volcanoes ____
A)are at or near mid-oceanic ridges or the extensions of these ridges onto land B)erupt approximately every 2,000 years C)form pyroclastic sheet deposits D)produce supervolcano eruptions E)are located on the Eurasian plate
A liquid thermometer that is held in direct sunlight will ____
A) accurately measure the air temperature B) measure a much higher temperature than that of the air C) measure a much lower temperature than that of the air D) measure the temperature of the sun rather than the air
These six pollutants are known as the criteria pollutants and are covered by the National Ambient Air Quality Standards
A) particulates, sulfur dioxide, nitrogen oxide, lead, VOC's and smog B) particulates, sulfur dioxide, carbon monoxide, nitrogen oxides, lead, and VOC's C) particulates, sulfur dioxide, carbon monoxide, nitrogen oxide, lead, and ozone
What is not a general characteristic of an active margin?
a. A broad shelf b. Faulting and volcanism c. Varied topography d. Little sedimentation