A recent investigation by scientists at the US Geological survey shows that strange animal behaviour might help predict future earthquakes. Investigators found such occurrences in a ten-kilometer radius of the epicenter of a fairly recent earthquake. Some birds screeched and flew about wildly; dogs yelped and ran around uncontrollably.
What prediction may be made by observing animal behaviour?
Select one:
a. the ten-kilometer radius of the epicenter.
b. an impending earthquake.
c. environmental changes.
d. the number of people who will die.
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