Several geologic phenomena are being studied as signs of an impending volcanic eruption.These include seismic waves,______________,and the release of gases.
A)ground deformation
B)flash floods
C)landslides
D)hymenoptra behavior
E)unusual animal behavior

Question

Quizplus · Accepted Answer

Ground deformation, such as bulging or sinking of the ground, is a common sign of volcanic activity and can indicate the movement of magma beneath the surface.

Answer: C
 Landslides are also often associated with volcanic activity, as earthquakes or the collapse of volcanic flanks can trigger them.

Answer: E
 Although unusual animal behavior can sometimes occur before a volcanic eruption, it is not a reliable or widely accepted indicator compared to seismic activity, ground deformation, and gas emissions.

Therefore, the best choices are A and C.

Several Geologic Phenomena Are Being Studied as Signs of an Impending