Question

Last one I swear, 50 points again! plz help this is schoolwork

Answer 1

It is a stretch of the atmosphere ranging from the upper mesosphere to the lower parts of the thermosphere. It’s useful to us in radio communication.

Answer 2

Answer:

Where is the ionosphere, and what makes it useful to us? The ionosphere is a stretch of the atmosphere ranging from the upper mesosphere to the lower parts of the thermosphere. It is useful to us in radio communication, as radio signals can bounce off of it to extend their range