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Asked by Waseem Nazir on Jun 02, 2024

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Which of the following slope failures moves at the slowest rate?

A) earth flow
B) rock avalanche
C) debris flow
D) rock fall
E) debris avalanche

Rock Avalanche

A rapid, large-volume descent of rock debris and soil on a mountain slope, often triggered by seismic activity, rainfall, or melting snow.

Debris Avalanche

A rapid flow of rock debris, soil, and other material down a slope, often triggered by heavy rainfall or seismic activity.

Earth Flow

A type of mass wasting event that occurs when water-saturated soil or fine-grained sediment flows downhill, resembling a very slow moving river of soil.

  • Learn about the different categories of slope failures and their respective characteristics.
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ZK
Zybrea KnightJun 04, 2024
Final Answer :
A
Explanation :
Earth flow moves at the slowest rate among the options listed. It typically occurs on gentle slopes and involves the gradual downhill movement of soil and rock material, often lubricated by water. This process can take years to develop and progress, making it slower compared to the more rapid and sudden movements associated with rock avalanches, debris flows, rock falls, and debris avalanches.

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