Pulverized rock and clastic materials ejected violently during an eruption are called
A) cinders.
B) explosive debris.
C) tephra, or pyroclastics.
D) volcanic ash.

Question

Quizplus · Accepted Answer

Pulverized rock and clastic materials ejected violently during an eruption are known as tephra or pyroclastics. These materials can vary in size from tiny particles of ash to large volcanic bombs and blocks.

Answer: D
 Volcanic ash is a type of tephra that consists of fine, pulverized rock and other materials that are ejected during an explosive eruption. Ash can travel long distances from the volcano and can have significant impacts on air quality, agriculture, and transportation.

Pulverized Rock and Clastic Materials Ejected Violently During an Eruption