Which outcome increases near composite volcanoes due to magma properties?

💡 Explanation

Higher silica content causes increased magma viscosity which promotes volatile gas retention because the magma is more resistant to flow; therefore, eruptions become more explosive, rather than allowing for steady lava flows or caldera formations.

• Which surface feature is accelerated meltwater flow primarily responsible for where active solifluction lobes are present?
• Which mechanism causes thermocline formation after prolonged solar radiation on a freshwater lake with low turbidity?
• Which atmospheric river risk increases upon landfall due to the orographic effect?
• Which process predominantly shapes cirque dimensions in regions characterised by intense freeze-thaw cycles?
• Which mechanism causes seismic creep along a transform fault boundary?
• Which atmospheric feedback amplifies surface warming during an El Niño event in the eastern Pacific?