The amplitude of a wave is the height of a wave as measured from the highest point on the wave________ to the lowest point on the wave ________.

A) crest; trough
B) amplitude; length
C) trough; crest
D) length; amplitude

Amplitude

The height of a wave from its midpoint to its peak or trough, indicating the strength or intensity of a wave.

Crest

The highest point of a hill or mountain range; also refers to the peak or summit.

Trough

A trough generally refers to a long, narrow container from which animals eat or drink, but in scientific contexts, it can also mean a low point or minimum phase in a cycle, such as in economics or meteorology.