In 1985 in Mexico City,building damages were the greatest and the number of deaths the highest where all but which one of these factors combined and created resonance:
A) The earthquakes sent a tremendous amount of energy in seismic waves in the 1- to 2-second frequency band.
B) The areas underlain by thick,soft clays vibrating at 1- to 2-second frequencies amplified the seismic waves.
C) Single-story buildings with a 1-second resonant period vibrated themselves to pieces.
D) Buildings of 6 to 16 stories vibrated in the 1- to 2-second frequency band.
Correct Answer:
Verified
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