En el invierno a causa de la baja temperatura en las partes atas del país y los estados del norte suele nevar dejando un hermoso espectáculo blanco sobre la superficie, que los niños aprovechan para hacer muñecos de nieve ¿Qué cambio de estado ocurrio?

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

The main types of electromagnetic radiation. radio  waves have  the lowest frequencies  and  longest  wavelengths, while gamma  waves have highest frequencies  and shortest wavelengths. the wavelengths vary across the electromagnetic spectrum from about 10–15 m to more than 104 m.hope it !