A. Oxygen ion
I am not sure but that's the right one I think. If I am wrong then I am sorry
Ultraviolet as ultraviolet light waves are around 420 nm like stated in the photo
Answer:
orbiting closer to the earth's surface.....im pretty sure abt it
Answer:
it's a chemistry change
Explanation:
this is because heat is causing permanent changes and can no longer be changed back to its original atate
