Respuesta :

Answer:

A column of hot volcanic ash and hot gas is released into the air during a volcanic eruption. When it begins to fall, it collapses on itself.

Explanation:

The volcanic plume may fall as a rain of ash, over extended regions that

causes darkness in an area or by the dangerous eruption column collapse.

Elucidation:

  • During a volcanic eruption, hot ash and gases having tephra particles suspended within are emitted from the vent of the volcano, and can rise to above 40 km, into the stratosphere.

The high rising plume is drifted by winds in the stratosphere, as volcanic

ash clouds drifts over surrounding areas, it reduces the access of light, and

visibility, due to the rain of ash, covering the landscape with inches of ash,

that has the ability to cause damage to machinery, such as cars,

electronics, and facilities, due to the penetration of ash into devices,

causing isolation of some areas.

  • The presence of ash in the atmosphere is therefore, a hazard to health and economy, that can possibly last for several months or may last for years, when the ash that fell is stirred up by a force.

Hazards, associated with falling plume includes column collapse, which

occurs when the upward convection currents are unable to support the

increasing weight of volcanic material in the course of an eruption, and

such material fall as a dangerous, fast moving, pyroclastic flow along the

volcanoes slope, due to gravitational attraction.

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