Which of the following poses the greatest hazard to human life associated with volcanoes?
A)flowing lava
B)volcanic gas
C)falling ash
D)pyroclastic flows

Question

Quizplus · Accepted Answer

Pyroclastic flows are fast-moving currents of hot gas and volcanic matter, which can reach temperatures of up to 1,800°F and move at speeds of up to 450 mph. They can quickly and easily cause death, destruction, and injury to anyone in their path, making them the most hazardous aspect of a volcanic eruption. While flowing lava, volcanic gas, and falling ash are also dangerous, their effects are typically more localized and can usually be avoided with appropriate precautions.

Which of the Following Poses the Greatest Hazard to Human