Verified Answer :

  1. The first one is red, on the spectrum longest to shortest is red, orange, yellow, green, blue and violet 

    11. Judging by the diagram I believe its radar, I'm not sure though.

    12. Gamma Rays

    13. Ultraviolet 

    14. Decreases

    15. Sound waves

    That's all I can answer for now since I have to go but I hope this helped.