During a volcanic eruption, which consequence results when sustained pyroclastic surges encounter prolonged rainfall?

A)Formation of erosive lahars✓

B)Deposition of leveed channels

C)Elevated atmospheric albedo

D)Reduced eruption column height

💡 Explanation

The formation of erosive lahars occurs, because pyroclastic flows mix with abundant water during rainfall, creating dense, rapidly flowing mudflows due to increased volume and mobility. Therefore, substantial erosion takes place and debris is carried, rather than atmospheric changes because of the ground flow acting as the mechanism.

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During a volcanic eruption, which consequence results when sustained pyroclastic surges encounter prolonged rainfall?

💡 Explanation

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