Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Earth & Natural SystemsWhat happens to the eruption style when magma density decreases significantly during a volcanic event?
A)Effusive lava flow increases sharply
B)Viscosity of the magma increases
C)Magma fragmentation becomes less efficient
D)Explosive potential of eruption increases✓
💡 Explanation
A decrease in magma density, particularly due to increased volatile content, enhances the magma's ability to fragment and expand rapidly. This promotes explosive eruptions because the pressure builds faster within the less dense magma, therefore increasing the potential for a more violent eruption rather than a more effusive one.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Earth & Natural Systems →- A sample of Arctic seawater cools rapidly during winter; which consequence is most likely regarding dissolved oxygen?
- If a coastal barrier island's vegetation is severely reduced by a hurricane, which consequence follows?
- Which outcome occurs when excessive rainfall impacts agricultural topsoil?
- If the Earth's rotation were to slow significantly, which consequence follows regarding the paths of prevailing wind streams?
- A surface algal bloom suddenly decays in a coastal ocean zone. Which effect results when this large amount of organic matter sinks?
- If ice sheets experience increased melting, which consequence follows?
