1. Which of the following describes a pyroclastic flow?
a. It is the flow of molten rock materials.
b. It is a fast turbulent flow of fragmented volcanic materials (ash and rocks)
mixed with hot gases.
c. It is a rapid flowing thick mixture of volcanic materials and water,
d. It is a large wave generated by displaced water due to volcanic eruption.
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Answer:
B
Explanation:
because pyroclastic flow is a dense, fast moving flow of solidified lava pieces volcanic ash, and hot gases. it occurs as part of certain volcanic eruptions