Question

the reflected waves from an ionosphere are

Answer 1

In radio communication, skywave or skip refers to the propagation of radiowaves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere. ... Most long-distance shortwave (high frequency) radio communication—between 3 and 30 MHz—is a result of skywave propagation.

Answer 2

skywave is the right answer.