A fast-moving flow consisting of a mixture of water and volcanoclastic debris is termed a ________.
A)lahar
B)pyroclastic flow
C)flood basalt
D)hyaloclastite

Question

Quizplus · Accepted Answer

Lahars are fast-moving flows that consist of a mixture of water and volcanoclastic debris, including rocks, ash, and volcanic sediment. They can be triggered by heavy rainfall or eruptions, and can be incredibly destructive as they move downhill, sweeping away everything in their path. Pyroclastic flows, on the other hand, are not typically associated with water and are composed mainly of hot ash, lava fragments, and gases. Flood basalt refers to the massive volcanic eruptions that cover large areas with basaltic lava flows, while hyaloclastite is a type of volcanic rock that forms when lava comes into contact with water and rapidly cools and solidifies.

A Fast-Moving Flow Consisting of a Mixture of Water and Volcanoclastic