Seismometers,being able to detect ground movements of a millionth of a millimeter,are useful to governments worldwide for detecting not only earthquakes,but _______________.
A) landslides
B) nuclear bomb tests
C) avalanches
D) bombing raids

Question

Quizplus · Accepted Answer

Seismometers are able to detect ground movements caused by nuclear bomb tests, making them useful for governments worldwide to monitor nuclear activity and test compliance with international treaties. While seismometers may also be used to detect landslides, avalanches, and bombing raids, the question specifically mentions their ability to detect movements of a millionth of a millimeter, which is much more relevant to monitoring nuclear activity.

Seismometers,being Able to Detect Ground Movements of a Millionth of a Millimeter,are