Which best describes electromagnetic waves moving from gamma rays to radio waves along the electromagnetic spectrum? wavelength and frequency decrease. wavelength and frequency increase. wavelength increases, and frequency decreases. wavelength decreases, and frequency increases.

The answer is wavelength increases, and frequency decreases. This is also due to the decrease in energy levels of the electromagnetic radiation across the spectrum. The wavelength of gamma rays is the size of the nucleus of an atom and has the energy of 4 x 10^9 eV while the energy of radio waves is 4 x 10^-10 eV, an energy difference of 10^19 eV.

All this is derived using the formula E= hf where;

E is energy

h is Planck's constant

F is frequency.