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

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

i think that the answer is c