Question

What conditions make for a violent volcanic eruption?

A. Magma with low viscosity
O B. Magma with low gas content
• C. Magma that can flow easily
O D. Magma with high silica content

Answer 1

D) Magma with high silica content

Step-by-step explanation:

Magma viscosity, magma temperature, and the amount of dissolved gasses determine how violent the volcanic eruption will be. High silica content makes magma viscous. Rhyolitic magma, which has high gas content and is silica rich, has lots of dissolved gas and with high viscosity magma.