Which technology most likely utilizes a mechanical wave and which technology most likely utilizes an electromagnetic? A. The copper wire utilizes an electromagnetic wave; the fiber optic utilizes a mechanical wave. B. The copper wire utilizes a mechanical wave; the fiber optic utilizes an electromagnetic wave.

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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they should be similar or the same

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2