Which of the following are differences between an eruption column and pyroclastic flow?

A. Tephra in an eruption column stays hotter until it reaches the ground.
B. Damage from an eruption column is more restricted than a pyroclastic flow.
C. A pyroclastic flow rises higher into the atmosphere than an eruption column.
D. A pyroclastic flow forms when the gas flux cannot support the column.


Answer: D

Environmental & Atmospheric Sciences

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