Answer :
An eruption is classified as an explosive volcanic eruption based on the amount of basalt found in the magma
Magmas that are more rich in silica and charged with gas are more explosive
Silica increases the viscosity significantly, but it is not a mineral when it is in the molten state
So silica is the answer
Silica increases the viscosity significantly, but it is not a mineral when it is in the molten state
So silica is the answer