An increase in which property would cause an electromagnetic wave's energy to increase?
A. Mass
B. Speed
C. Wavelength
D. Amplitude

C. wavelength

Explanation: Frequency = speed of light/wavelength. The frequency of an electromagnetic wave increases as wavelength decreases. As wavelength decreases (and frequency increases) energy increases.

Picture for reference:

The native americans, spanish, french and americans all name places in our state. the word “arkansas” came from the quapaw indians, by way of early french explorers. at the time of the early french exploration, a tribe of indians, the quapaws, lived west of the mississippi and north of the arkansas river.

Idon’t know who knows but i know who does not know me