The geysers and hot springs of Yellowstone National Park result from
A) thin continental crust separating and creating a rift valley.
B) plumes of hot mantle rising in a hot spot within a plate.
C) plates that have slipped sideways relative to each other, creating a fault.
D) a plate that has run up against an existing continental plate.
E) a fault.
Question 2
How does a 1.2-solar-mass white dwarf compare to a 1.0-solar-mass white dwarf?
A) It has a larger radius.
B) It has a smaller radius.
C) It has a higher surface temperature.
D) It has a lower surface temperature.
E) It is supported by neutron, rather than electron, degeneracy pressure.