Geologists believe that the warning signs for a major earthquake may include sudden fluctuations in local seismic activity, tilting and other deformations of the Earth’s crust,changing the measured stain across a fault zone, and varying the electrical properties of underground rocks.
(A) changing the measured strain across a fault zone, and varying - parallelism error
(B) changing measurements of the strain across a fault zone, and varying - parallelism error
(C) changing the strain as measured
...
(A) changing the measured strain across a fault zone, and varying - parallelism error
(B) changing measurements of the strain across a fault zone, and varying - parallelism error
(C) changing the strain as measured
...
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