Which environmental shift occurs following a large composite volcano eruption's pyroclastic surge?

💡 Explanation

A pyroclastic surge's high temperature and toxic gases induce successional dieback because plants cannot recover directly from acute devastation, rather than geothermal heating or phytoplankton response; therefore, the ecosystem initially collapses.

• Which mechanism causes uplift and terrace formation parallel to a coastline along a strike-slip fault?
• Which mechanism primarily maintains gyre circulation in subtropical ocean basins?
• Which atmospheric effect results from collision of air masses along subtropical high-pressure belts?
• Which process limits fjord depth more directly than eustatic sea level changes?
• Which geological outcome dominates at the apex of an actively forming alluvial fan?
• Which risk significantly increases when a large dam is constructed across an active seismic fault?