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 effect results when the Earth's rotation deflects moving air masses?
• Which mechanism causes episodic draining of ice-dammed lakes during glacial retreat?
• Which mechanism sustains thermohaline circulation in the Atlantic Ocean when surface water cools significantly during winter?
• Which effect results when seasonal shifts modify jet stream position relative to a mountain range?
• Which mechanism increases stream discharge during intense orographic precipitation events?
• Which climate consequence results when trade winds weaken significantly during an El Niño event?