Which statement demonstrates that ultraviolet (UV) rays are electromagnetic waves? A. They require a medium to travel

B. They don't require a medium to travel

C. The particles of the medium through which they travel vibrate perpendicularly to the direction of the wave

D. The particles of the medium through which they travel vibrate parallel to the direction of the wave

E. The particles in the medium through which they travel remain stationary

It will appear as o2(g) as a reactant 

The ratio is 3: 2. i.e. c.

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  c.sending the first human into space4. which of these space missions involved the deployment of lunar roversa. voyager 15. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar  systemb.safir7.which technology limit the future of space explorationb. scientist must first develop certain technologies before missions can be completed.