Which of the following locations five kilometers from the crater of a volcano would likely be safe from a large pyroclastic flow,if any?
A) far side of a steep-sided, 100-meter-high hill
B) far side of a five-kilometer-wide lake
C) behind a large tree with an 80-centimeter-diameter (2½ feet) trunk
D) None of the locations are safe: ash flows can flow over large hills, can cross large expanses of water, and can fell very large trees.
E) All of the locations are safe: ash flows cannot flow over large hills, cannot cross large expanses of water, and cannot topple very large trees.

Question

Quizplus · Accepted Answer

Pyroclastic flows are extremely fast-moving and can overcome large obstacles such as hills, cross bodies of water, and destroy large trees, making none of the locations safe.

Which of the Following Locations Five Kilometers from the Crater