Answer:
Water gradually degrades them until the metal parts rust and the other materials deteriorate.
Explanation:
Any element in group 18 has eight valence electrons (except for helium, which has a total of just two electrons). Examples include neon (Ne), argon (Ar), and krypton (Kr). Oxygen, like all the other elements in group 16, has six valence electrons.
It should be radio waves. If you need anymore help look up the wavelength chart online.
This is known as polymerisation
The maximum oxygen uptake is known as the VO2 max.
