Mount St. Helens is a volcano that erupted with great force in 1980. Which phrase best describes this eruption?

quiet eruption
gentle lava flows
magma low in silica
high-viscosity magma

Respuesta :

Answer:The best phrase which supports the eruption would be high-viscosity magma lava broken into fragments.

Answer:

high-viscosity magma

Explanation:

High viscosity lavas flow slowly and typically cover small areas. In contrast, low viscosity magmas flow more rapidly and form lava flows that cover thousands of square kilometers.