A(n) _______ is a mix of gas and dust emitted by a volcano that is so dense that it hugs the ground.
A) pyroclastic flow
B) pahoehoe flow
C) obsidian
D) lava flow
E) tuff flow

Question

Quizplus · Accepted Answer

A pyroclastic flow is a fast-moving mix of gas and volcanic material that travels down the slopes of a volcano. It is so dense that it hugs the ground and can be extremely dangerous as it can reach speeds of over 100 km/h and temperatures of over 1,000°C.

A(n) _______ Is a Mix of Gas and Dust Emitted