Answer:
exactly how you just typed it or put into scientific notation
Explanation:
They use IN and I. in there startes.
I think about the symbolism of shape.
D is the correct answer.
In the badly drawn diagram attached, you will find the <em>yellow</em> represents wavelength, which is the distance between identical points on consecutive waves.
The <em>green</em> represents the amplitude, which is the distance between the origin (middle) and crest/trough (top/bottom)