The process in which the floors of a building collapse on one another is known as
a. pancaking.
b. a landslide.
c. earthquake shakedown.
d. earthquake panic.

The process in which the floor of a building collapse on one another is known as A. pancaking. Picture that sort of collapse. One floor collapses downward onto a floor of similar shape like one pancake falling onto another and so on and so forth.

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