neither, both travel at the same speed: c
Faster.
Any electromagnetic wave that can propagate through water at all will do so at a lower speed than when it's in air.
Sound travels faster in water than it does in air. It travels even faster in metals.
Yes because it travels faster
no sound travels faster through solids.
sound travels faster through water than air.
Sound travels faster in iron. Usually sound travels faster in media with higher density. Also presence of lattice makes difference too.
Sound travels faster through air. Though sound travels farther through solid objects (vibrations), it is faster when traveling through air waves.
Light travels slower through denser media, so it travels faster through water than through a diamond.
Sound travels faster through solid materials. The 2nd fastest is liquids.
Electromagnetism is manifest along a continuum between slower radio waves and faster energy gamma waves. Visible light can be found in the range between infrared light (slower than waves of visible light) and ultraviolet light (faster than waves of visible light).
Sound is a compression wave that travels via then vibrations of particles. If the particles are closer together then the wave (sound) moves faster. Particles are closer together in a liquid than a gas, therefore sound travels faster through liquids.