It's because of the position of tectonic plates.
Answer:
Gamma rays occupy the short-wavelength end of the spectrum; they can have wavelengths smaller than the nucleus of an atom. Visible light wavesare one-thousandths the width of human hair--about a million times longer than gamma rays. Radio waves, at the long-wavelength end of the spectrum, can be many meters long.
A change in temperature can cause the a change in state of matter.
A physical change is where substance does not change where as in chemical reaction substance is changed and forms another form.
It would cost $0.69 to operate the monitor for a day.