HELP in sscience please pls

Answer is in the photo. I can't attach it here, but I've uploaded it to a file hosting. link below! Good Luck!

cutt.ly/XzW3SUN

Since most Earth's communications rely on radio waves, from TV to phones to radio channels, radio satellite arrays must be built far away from cities and towns. Deserts areas are a go-to for radio telescope construction
The arrays must also be made up of several to dozens of large and precise antenna to pick up the wavelengths because they're very low energy.