The same way as the trees with green leaves. Through photosynthesis :)
Constantine I helped to socially and politically unify the early byzantine empire by tolerating and even promoting christianity.
<span>The product of (wavelength) x (frequency) is always the same number ... the speed of the wave. So if one of them decreases, the other one must increase in order to keep the product the same. Shorter wavelength means higher frequency. </span>
The force of attraction is decreased
Answer
The wavelength for 550 kHz signal is

λ = 545.45 m
The wavelength for 1600 kHz signal is

λ = 187.5 m
The wavelength for 88 MHz signal is

λ = 3.41 m
The wavelength for 108 MHz signal is

λ = 2.78 m