Respuesta :
Answer: Silica Content.
Explanation: If a magma has a hIgh silica content it is more viscous. If the temperature of the magma is low it is more viscous. High levels of gas cause high viscosity.
Answer: Silica Content.
Explanation: If a magma has a hIgh silica content it is more viscous. If the temperature of the magma is low it is more viscous. High levels of gas cause high viscosity.