How often do destructive tsunamis strike somewhere in the world?
a. Approximately once a year
b. Approximately one every two years
c. Approximately once every decade
d. Approximately a few times per year
ANS: A
Tsunamis occur fairly frequently. On average, they strike once a year to a destructive force. Many
regions employ various tsunami monitoring devices to prevent large tragedies like in Indonesia.
Information can be found in the section Water Displacement Causes Tsunamis and Seismic Sea Waves.
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Fill in the blank with correct word.