Because they don’t really come from this area
You cannot put any sort of endmark (period, question mark, or exclamation point) here because it is not a complete sentence. Complete sentences must have a subject and a predicate. You can tell there's not even a verb here, so this is just a fragment, and we would have to use a comma.
a. Very truly yours,
B i think? <span>It emphasizes the betrayal of the Japanese, as well as the severity and number of attack</span>
Answer:
Radio Waves
Microwaves
Infrared Waves
Visible Light Rays
Ultraviolet Waves
X-rays
Gamma Rays
Explanation:
This is the Electromagnetic Spectrum.