All of the Following Statements Concerning Magma Movement Are True

question 43

Multiple Choice

All of the following statements concerning magma movement are true EXCEPT:

• A) a highly viscous magma usually crystallizes at lower temperatures.
• B) the gases in low- viscosity magmas tend to escape easily when the magma reaches the surface.
• C) as heat reduces viscosity, ions within a magma move more rapidly.
• D) a very viscous magma tends to be less explosive.