Unusual breath odors are common in kids. Typically there isnât anything to worry about, but there are some breath odors that indicate an underlying problem. In children smelly breath that persists throughout the day is most often the result of mouth-breathing, which dries out the mouth and allows the bacteria to grow.
Light is composed of particles called photons, and matter is composed of particles called electrons, protons, neutrons. It's only when the mass of a particle gets small enough that its wavelike properties show up. To help understand all this let's look at how light behaves as a wave and as a particle.
Photons are the form energy takes when traveling through free space. Yes, anything that emits light is creating photons. Electrons are changing energy state, and when they give up energy, the energy is in the form of photons because free energy is ALWAYS in the form of photons. No, photons are not mass.