Respuesta :

Cutiepatutie
Well, I'm guessing your talking about the tropopause. It's the first layer above the surface and contains half of the Earth's atmosphere. If this isn't the answer you were looking for just give me a little more information, and I'll be glad to help you out more.

Good Luck!! :-) <3 :-)

Answer:

This portion of the stratosphere if known as the _______.  

A.  

mesosphere  

B.  

thermosphere  

C.  

tropopause  

D.  

ozone layer

Explanation:

which one is it