Home & Garden1 min ago
Answers
Best Answer
No best answer has yet been selected by BillyBB. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.They're not mutually exclusive some of the thermosphere is in the ionosphere
//The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation//
http://en.wikipedia.org/wiki/Ionosphere
//The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation//
http://en.wikipedia.org/wiki/Ionosphere