The cloud that rises from the vent of an actively erupting volcano is composed of ________.
A)smoke from wildfires inside the volcanic crater
B)smoke from wildfires on the outer slopes of the volcano that funnel into the crater
C)fine volcanoclastic debris (ash)suspended in the air
D)a continuous fountain of dark,basaltic lava

Question

Quizplus · Accepted Answer

The cloud that rises from the vent of an actively erupting volcano is composed of fine volcanoclastic debris (ash) suspended in the air. This is because during the eruption, the magma is fragmented into small pieces, which are then ejected out of the volcano along with gases and steam. These tiny pieces of volcanic rock and ash can stay suspended in the air for a long time, forming a characteristic volcanic plume or cloud.

The Cloud That Rises from the Vent of an Actively