________ tend to increase the explosive potential of a magma body beneath a volcano.
A. High viscosity and dissolved gas
B. High viscosity; low dissolved gas content
C. Low silica content, low viscosity
D. Low viscosity; low dissolved gas content
Answer:A
________ tend to increase the explosive potential of a magma body beneath a volcano.
A. High viscosity and dissolved gas B. High viscosity; low dissolved gas content C. Low silica content, low viscosity D. Low viscosity; low dissolved gas content