The discovery that the firing of clay makes it permanently hard is an example of a(n)_______________.
A)fluke
B)accidental innovation
C)surprise occurrence
D)primary innovation
E)secondary innovation

Question

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The Answer of The discovery that the firing of clay makes it permanently hard is an example of a(n)_______________.
A)fluke
B)accidental innovation
C)surprise occurrence
D)primary innovation
E)secondary innovation

The Discovery That the Firing of Clay Makes It Permanently