Volcanoes are present at convergent plate boundaries because
A) the plates rub together, causing friction and heat.
B) water is carried down with the subducting plate and causes the mantle to melt.
C) heat from the inner mantle travels up along the subducting plate.
D) decompression melting due to decreased pressure at the boundary causes the mantle to melt and rise into volcano formations.
Answer: B
You might also like to view...
Choose the answer that best explains why a rock might not go through the complete rock cycle.
A. Rock may be involved in a variety of processes in different sequences. B. The exposed rock may never weather thus never enter the rock cycle again. C. Some rocks are forever trapped in the magma of the Earth.
A cyclone is usually larger than an anticyclone
Indicate whether the statement is true or false
In a translational slide, the descending mass ________.
A. is moving and circulating within the flowing mass, behaving as a viscous fluid B. moves as a perfectly rigid block on top of a liquid layer C. slides as a generally intact block down a curved failure surface D. moves along a plane approximately parallel to the slope of the surface E. simply moves from one location to another, without specifying the mode of motion
Wind speed may be roughly indicated by ________
A) the spacing of isobars on a weather map B) reading a barometer C) reading the cardinal direction on a weather map D) checking the thermometer E) reading the hygrometer