According to my assumptions,the answer closest to the perfection is :
c. they show royalty instead of peasants.
A trough is the lowest point in a wave.
<span>Weather satellites and weather stations are similar, because they both have the same purpose. They are used to help predict future weather as well as as current conditions. The satellites are viewing the weather from a distance at a large scope, but stations are using data they collect on earth to help with the same task.</span>
