Which of the following does NOT influence whether an eruption will produce lava flows or pyroclastic debris?
A) viscosity of magma
B) composition of magma
C) proportion of volatiles within magma
D) depth and residence time of magma

Question

Quizplus · Accepted Answer

The depth and residence time of magma may influence the size and scale of an eruption, but it does not play a direct role in determining whether an eruption will produce lava flows or pyroclastic debris. The viscosity and composition of the magma, as well as the proportion of volatiles within it, have a greater influence on these outcomes.

Which of the Following Does NOT Influence Whether an Eruption