On a color wheel, colors that are directly across from each other are called Complementary Colors...
Answer:
Yes of course. We already have devices that can read facial expressions and respond to them. At some point technology will evolve to the point that it will understand hand signs as well. It can be used to support a conversation with someone who is hard of hearing, or teach people how to sign in ASL without an actual teacher.
Explanation:
Answer:
I think that it's B
Explanation:
Because the heroes often did that harmony.