Question

use the drop - down menus to identify the electromagnetic waves. label a: label c: radio waves gamma rays ultraviolet rays infrared

Explanation:

In the electromagnetic - spectrum, radio waves have the longest wavelengths. Wavelengths decrease in the order of radio waves, infrared, visible light (400 - 700 nm shown as D), ultraviolet, X - rays, and gamma rays. Since A has a long wavelength, it is radio waves.

Answer:

Label A: radio waves
Label C: infrared (assuming C is a wavelength longer than visible light but shorter than A based on typical electromagnetic - spectrum order)