How do objects with the same charge behave?
a. they don't do anything different. b. they move.
c. they catch on fire. d. they move apart.

the answer is D

Explanation:

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.