A. hinting at things that may come in the future
Answer:
it's false , they can travel through vacuum too.
Explanation:
electromagnetic EM waves can travel through solids, liquid , gases, vacuum.
these waves can travel through any medium, for example visible light.
hence doesn't need any material media to propagate
Answer:I know the first one is correct by other than that I don’t know any other sorry
Explanation:
