There are some ___________ signs, like changes in water levels, that scientists look for before a disaster., destruction, observable, random, The ___________ in the rocks builds up for years until they finally break and cause a quake., strain, boundary, forecast, This ___________ is known for its high seismic activity and frequent ground shaking., random, pattern, region, A weather ___________ tells us about rain, but a seismic one is much harder to make., forecast, destruction, generate.

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