The selection states that some stones are stacked, with very large stones balanced on top of smaller ones. Some scientists think these stones may have had a special job. What is it?
A to keep wolves away from herds of cows
B to tell when an earthquake was coming
C to tell when the next sunny day would be
D to keep strong winds away from people’s houses
The correct answer is B to tell when an earthquake was coming.
Some scientists believe that the way these stones are stacked, particularly the large stones on smaller ones, may have served as a way to indicate seismic activity. The arrangement could potentially make them sensitive to ground movements, acting as a natural alarm for an earthquake, which would help people be prepared for such events. If you have any more questions, feel free to ask!