Following a volcanic eruption, what feature indicates renewed magma ascent to form a lava dome?

💡 Explanation

Heightened sulfur dioxide emissions indicate magma rising toward the volcano's surface which precedes dome formation because degassing increases with proximity to the surface through convection; therefore heightened gasses, rather than seismic changes, are the indicator.

• Which effect occurs when air masses move poleward from subtropical high-pressure zones, deflected by the Coriolis force?
• Which outcome results when excessive rainfall occurs in heavily fertilized farmland?
• Which outcome results when regional wind erosion concentrates abrasive particles?
• Which topographical feature forms down-slope following sediment deposition during episodic flooding cycles?
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