Final answer:
Glowing, hot, avalanche-like flows of volcanic debris are called pyroclastic flows, or nuee ardentes. These flows are rapid-moving, dense, and very hot, capable of knocking down structures in their path and incinerating or suffocating populations. They are associated with highly explosive volcanic eruptions.
Step-by-step explanation:
Glowing, hot, avalanche-like flows of volcanic debris are called pyroclastic flows, or nuee ardentes. These flows are rapid-moving, dense, and very hot, capable of knocking down structures in their path and incinerating or suffocating populations. They are associated with highly explosive volcanic eruptions.
During a volcanic explosion, pyroclastic flows are composed of a mixture of hot volcanic ash, rock fragments, and gases. They can travel at high speeds and temperatures, reaching up to hundreds of kilometers per hour and several hundred degrees Celsius.
Pyroclastic flows can be extremely destructive and pose significant hazards to nearby communities. They are commonly encountered in volcanic areas, such as those associated with stratovolcanoes and calderas.