Unlike sound waves, electromagnetic waves can travel through a vacuum. What observations can you make to support this statement?

Hello how was your day? ? i hope it was good

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.

Ithink it is a. but i'm not 100 percent sure.