Viscous magmas are stored as a mostly solid, crystalline mush. It can be activated by which of the following?
A. a massive increase in spreading center rates
B. an injection of new, hot magma and fracturing by fault movements that connect to isolated magma bodies and reduce the pressure
C. fracturing by fault movements that connect to isolated magma bodies and reduce the pressure
D. an injection of seawater
E. an injection of new, hot magma
Answer: B
You might also like to view...
As a whole, the core cause of global undernutrition is
A) poverty. B) famine. C) the green revolution. D) food security. E) GMOs.
Haiti's 2008 earthquake resulted in over 230,000 deaths whereas Japan's 2011 earthquake resulted in 20,000 deaths. What explains the differences in loss of life?
A) in Haiti there was also a tsunami that followed the earthquake B) strength of the earthquake C) effectiveness of search and rescue operations and local building standards D) local building standards E) effectiveness of search & rescue operations
A Benioff zone is a region of deeper earthquake foci where geometry reflects a subducting slab of lithosphere.
Answer the following statement true (T) or false (F)
If climate change occurs as projected, which method of death would decline?
A. hypothermia B. heat exhaustion C. toxic molds D. malaria