Relatively cooler magma in an erupting volcano is apparently the result of ________.
A) the amount of water present
B) depth of magma formation
C) position of astronomical bodies
D) surface salinity
E) a high amount of silica present

Question

Quizplus · Accepted Answer

Relatively cooler magma tends to have a high silica content, which increases its viscosity and lowers its temperature compared to low-silica magma.

Relatively Cooler Magma in an Erupting Volcano Is Apparently the Result